치아재식시 골형태형성단백이 치주조직 치유에 미치는 영향

김지숙,박준봉,이만섭,권영혁,Kim, Ji-Sook,Park, Joon-Bong,Lee, Man-Sup,Kwon, Young-Hyuk,Cho, Kyoo-Sung 대한치주과학회 2002 Journal of Periodontal & Implant Science Vol.32 No.3

The purpose of this study is to evaluate the influences of the bone morphogenetic protein (BMP) on the healing of periodontal ligament and alveolar bone after replantation of tooth, and to examine the possibility of its clinical application. 45 Sprague Dawley rats weighted about 100 gram were divided into 3 experimental groups by different dose of BMP. All the upper right and left 1st molar were extracted after 5 days feeding of 0.4% ${\beta}$-aminopropionitrile, and right molar were used as experimental group and left molar were used as control group. The root surface of experimental molar were treated with 25,50 and l00ng/ml of human recombinant Bone morphogenetic protein-4 (rh-BMP-4) with micropipet, and 1M Sodium hypochloride were used on control root surface. All the experimental animals were sacrificed as 1, 2, 4, 7 and 14 days after autoreplantation of upper 1st molar into their own position. The maxilla were disected included both side of 1st molar. The collected tissue were processed from demineralization to paraffin embeding as usual procedure, and the specimens were prepared with Hematoxylin-Eosin stain for the light microscopic evaluation. The results of this study were as follows : 1. There was no significant differences between control and experimental site on 1 and 2 days after replantation of tooth. In the case of 4th days, the evidence of tissue regeneration were observed on experimental site to compare the controls. New osteoid were revealed on high concentration of BMP at 7 days after replantation, and it became more obvious at 14 days, 2. The effect of the rh-BMP-4 coated on root surface was revealed slight influences for the prolifertion of cells of periodontium and tissue regeneration as dose-dependent pattern. 3. Bony ankylosis was observed between alveolar bone and root surface due to the remarkable amount of osteoid formation on the 14 days after replantation of root. In the conclusion, it was suggested that topical application of the rhBMP-4 on the root surface has influence on the periodontal ligament and alveolar bone. The application method of BMP on the root should be designed with calculation of proper concentration.

지형요인에 의한 일조권 침해의 영향 분석

김지숙,김호용,이성호,Kim, Ji-Sook,Kim, Ho-Yong,Lee, Sung-Ho 한국공간정보학회 2011 한국공간정보학회지 Vol.19 No.1

최근 대도시지역의 고밀화와 주거환경에 대한 관심의 증가로 인해 일조권 확보를 위한 분쟁이 빈발하고 있다. 일조권 분석에서 정확한 일조 침해여부를 분석하기 위해서는 주변 지형 지물의 영향으로 인한 일조시간 변화를 고려하여야 한다. 이에 본 연구에서는 정확한 일조 침해분석을 위하여 부산광역시를 대상으로 HV 알고리즘을 이용하여 지형에 의한 일조시간 변화를 분석하였다. 분석결과 첫째, 표고가 50m 증가함에 따라 대상지역의 최소일조시간과 평균 일조시간이 감소하는 지형에 의한 영향이 나타났다. 둘째, 법적 기준에서 지정된 시간범위에서 최고 78.6%에 해당하는 지역이 일조시간에 영향을 받았다. 셋째, 주변지역의 지형별 특성이 일조시간에 큰 영향을 미치고 있었다. 따라서 정확한 일조권 분석을 위해서는 반드시 주변지역의 지형에 대한 고려가 필요하다고 하겠다. 또한 본 연구에서 사용된 HV 알고리즘과 그 결과로 나온 하늘에 대한 가시권은 실질적인 일조권 분석에 앞서 법적 일조시간에 영향을 미치는 주변지역의 지형에 의한 영향을 분석하기에 도움이 될 것으로 간주된다. With the recent overcrowding of metropolitan cities and people's increasing interest in housing environment, there are frequent disputes occurring over the right to daylight. In order to determine whether daylight has been encroached accurately. we need to consider the daylight change by the effect of the geographical features of the surrounding areas but most of the previous relevant studies overlooked this consideration. Thus, in order to determine the encroachment of daylight accurately, this study analyzed the change in the duration of daylight according to geographical features by applying the Hemispherical Viewshed Algorithm to Busan Metropolitan City. According to the results of the analysis, the minimum and average duration of daylight decreased with an increase of altitude by 50m. Second, according to the time bound designated by law, up to 78.6% of the area was influenced by the duration of daylight. Third, the geographical features of the surrounding areas had a significant effect on the duration of daylight. Accordingly, in order to analyze the right to daylight accurately, it is essential to consider the geographical features of the surrounding areas. Furthermore, the Hemispherical Viewshed Algorithm used in this study and the visible area of the sky obtained from the algorithm are considered helpful to analyze the influence of the geographical features of surrounding areas on the legal duration of daylight before analyzing the practical right to daylight.

백서의 치주인대세포와 두개관세포의 혼합배양이 석회화과정에 미치는 영향

김지숙,박준봉,이만섭,권영혁,허익,임상철,Kim, Ji-Sook,Park, Joon-Bong,Lee, Man-Sup,Kwon, Young-Hyuk,Herr, Yeek,Lim, Sang-Cheol 대한치주과학회 1997 Journal of Periodontal & Implant Science Vol.27 No.4

This study was performed to evaluate the effect of mixed culture of rat's calvaria cells and periodontal ligament cells on calcification. These cells have been known to do important role on the periodontal tissue regeneration, especially alveolar bone and cementum. Experimental groups were made which based on the different rate of rat's calvaria cells and periodontal ligament cells, and then these cells were cultured with Dulbecco's Modified Eagle's Medium contained with 10% fetal bovine serum, $50{\mu}g/ml$ ascorbic acid, and 10mM/ ml $Na-{\beta}-glycerophosphate$. Each group was characterized by examining the cell proliferation rate, amount of total protein synthesis, alkaline phosphatase activity, and the number of calcified nodules in vitro. In cell proliferation rate , the cells of control groups were cultured Dulbecco's Modified Eagle's Medium contained with 10 % fetal bovine serum. The results were as follows : 1. The cell proliferation rate in control groups decreased stastically significantly along with the decrease of the rate of bone cells at 7 day and 20 day(P < 0.01). 2. The cell proliferation rate in experimental groups decreased stastically significantly along with decrease of the rate of bone cells at 3 day and 14 day(P < 0.01). 3. The amount of total protein synthesis was significantly decreased along with decrease of the rate of bone cells at 3 day and 6 day(p < 0.01). 4. Alkaline phosphatase activity showed reverse time dependent pattern and was significantly decreased along with decrease of the rate of bone cells during the experimental periods (P < 0.01). 5. Calcified nodules were observed in group 1 (Rat calvaria cells alone) for the first time, and the number of calcified nodule decreased stastically significantly along with the decrease of the rate of bone cells at 12 day(P < 0.01). From the above results, When bone cells and periodontal ligament cells were mixed cultured, the cell proliferation rate was mostly dependent on the actual rate of bone cells and same pattern was showed in amount of total protein synthesis, alkalinephosphatase activity, and the number of calcified nodules. And the calcified nodule forming capacity of bone cells was inhibited by periodontal ligament cells

원예치료가 독거노인의 공동체 의식 함양과 생활 만족도에 미치는 영향

김지숙(Ji Sook Kim),김희영(Hee Yung Kim),조미경(Mi Kyung Cho),김홍열(Hong Yul Kim),김후경(Hu Kyung Kim),오지현(Ji Hyun Oh),유연진(Yun Jin Yu),이정현(Jung Hyun Lee) 한국원예학회 2001 한국원예학회 학술발표요지 Vol.2001 No.10

공간정보유통을 위한 메타데이타의 질의 처리

김지숙(Ji-Sook Kim),최진오(Jin-Oh Choi),홍봉희(Bong-Hee Hong) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.2Ⅰ

분산환경에서 대용량의 공간정보 유통을 위한 효율적인 지리 정보 검색을 위해서는 질의에 의한 메타데이타의 검색이 필요하다. GIS 데이타는 방대할 뿐만 아니라 각 응용에 따른 데이타 구축 방법이 다르므로 데이타 공유를 위한 정보를 검색이 어렵다. 따라서 사용자가 필요로 하는 공간정보 검색을 위해 GIS 데이타에 대한 메타데이타를 구축하고 이에 대한 질의 검색을 하는 것이 효과적이다. 이 논문에서는 표준으로 제공되고 있는 ISO 메타데이타의 특징을 분석해 데이타 구조를 설계하고 이를 구조화하기 위한 방법으로서 OGIS 카탈로그 이용을 제안한다. 그리고 카탈로그 구조를 색인으로 이용하여 사용자의 메타데이타 질의 처리방법을 제시한다.

8주간의 스트레칭과 코어 운동 프로그램이 청소년의 자세교정에 미치는 효과에 관한 비교분석

김지숙(Kim Ji Sook),박태섭(Park Tae Seop) 한국발육발달학회 2019 한국발육발달학회지 Vol.27 No.2

This study aims to provide exercise program for correct body alignment of the youth in the growth period, to identify the factors that can be improved through correct posture and to improve the quality of the youth in growth period. For this purpose, this study conducted a group exercise for 60 minutes 2 times a week and a personal home training program one time a week on the experimental group 1(7 persons) applied with stretching exercise and experimental group 2(10 persons) applied with core props exercise program for 8 weeks. By examining and analyzing changes in 3 dimensional posture measurement variables before and after application of program, that is, arrangement status of the spine, imbalance of body central axis, rotation of spine and torso torsion using formetric 4D, this study obtained the results as follows. First, significant difference between group was found in Scoliosis and Kyphosis among Vertebra factors(p<0.5). Second, significant difference between group was found in pelvic rotation and pelvic torsion among pelvic factors(p<0.5). No significant difference was found in the factors of torso twist, rotation of pelvis and imbalance of central axis.

온라인 구전정보특성이 정보수용의도와 재구전 의도에 미치는 영향에 관한 연구

김지숙(Ji-Sook Kim),권혁기(Hyeok-Gi Kwon) 한국산업정보학회 2016 한국산업정보학회논문지 Vol.21 No.6

본 연구는 구전정보 수용에 영향을 미칠 수 있는 발신자의 전문성, 구전정보의 생생함과 동의성을 고려하여 온라인 구전정보특성이 구전정보 확산에 미치는 영향관계가 수신자의 전문성 수준에 따라 어떻게 차이가 나는지 확인하고자 실증 분석하였다. 분석결과 첫째, 발신자의 전문성이 높고 구전정보가 생생하고 동의성이 높을수록 정보수용의도에 긍정적인 영향을 미치는 것으로 나타났다. 둘째, 정보수용의도가 재구전의도에 긍정적인 영향을 미치는 것으로 나타났다. 셋째, 수신자의 전문성 수준은 온라인 구전정보 특성이 정보수용의도에 미치는 영향력을 조절하는 것으로 나타났다. An actual analysis was made regarding how different the effect of the online WOM information characteristics on the expansion of the WOM information characteristics was depending on the level of the receiver`s expertise in consideration of the sender`s expertise, the vividness and Consensus of WOM information which can affect the acceptance of WOM information in this study. To begin with, the analysis results showed that the online WOM information characteristics had the positive effect on the information acceptance intention in proportion to the sender`s expertise and the vividness and Consensus of WOM information. Secondly, the information acceptance intention was found to have a positive effect on the re-WOM intention. Finally, the level of receiver`s expertise was found to control the effect of the online WOM information characteristics on the information acceptance intention.

시각자료와 설명자막의 활용이 청각장애학생의 과학개념 이해에 미치는 효과

김지숙(Ji Sook Kim),김영욱(Young-Wook Kim) 한국언어청각임상학회 2002 Communication Sciences and Disorders Vol.7 No.3

본 연구는 청각장애학생들의 특성을 고려하여 설명자막을 제작 및 제공함으로써 시각자료와 설명자막의 활용이 청각장애학생의 과학개념 이해에 미치는 효과를 알아보는데 목적을 두고 있다. 이를 위해 시각자료만을 제공받은 집단과 시각자료와 설명자막을 함께 제공받은 집단을 비교하였다. 본 연구의 대상은 청각장애 6학년 학생 16명을 대상으로 하였고, 8명씩 두 집단에 무선 배치하였다. 연구결과, 과학개념에 있어서 시각자료만을 제공했던 집단보다 시각자료와 설명자막을 함께 제공했던 집단의 청각장애학생들이 과학개념을 더 잘 이해한 것으로 나타났다. The purpose of this study was to investigate the effects of applying visual materials and explanatory captions to hearing-impaired students’ comprehension of science concepts. The subjects of this study were 16 hearing-impaired students in special schools. The subjects were randomly assigned to two groups: the visual-materials-only group and the visual- materials-with-explanatory-captions group. In the measurement of comprehension of science concepts, a post-test was performed at the termination of learning and a follow-up test was performed one week later. The qualitative analysis was used to investigate the effects of captioning experience and the practical use of clue. T-test was used for the data analysis. The results of this study were as follows: First, in the application of learning materials, the visual-materials-with-explanatory-captions group was significantly better than the other group of visual-materials-only group in comprehension of science concepts. Second, all subjects experienced watching the captioned television. The comprehension of science concepts was not related to the frequency nor to the experience in the group in which the subjects watched captioned television. In conclusion, visual materials are beneficial to the comprehension of science concepts. However, these is not enough to help the comprehension for abstract concepts. For the ability of hearing-impaired students’ comprehension of science concepts, we should consider students’ reading level, vocabulary level, appropriate captioning speeds.

가중침전제 및 하이드로사이클론을 이용한 슬러지 침강성 개선 연구

김지숙(Ji Sook Kim),김만수(Man Soo Kim),박정태(Jung Tae Park),원창연(Chang Yeon Won) 대한환경공학회 2021 대한환경공학회 학술발표논문집 Vol.2021 No.11

과제제시유형에 따른 정신지체아동의 참조적 의사소통 전략 특성

김지숙(Kim, Ji Sook),이윤선(Lee, Yun Sun) 단국대학교 특수교육연구소 2007 특수교육논총 Vol.17 No.-