민간공원 특례사업으로 인한 청주시 공원 · 녹지의 연결성 변화 분석

이종욱(Lee, Jong-Wook),박종광(Park, Jong-Kwang),홍성조(Hong, Sungjo) 대한건축학회 2022 대한건축학회논문집 Vol.38 No.1

The Korean government introduced a private-initiative park project to prevent further environmental damage caused by the abolition of parks. The private-initiative park project is expected to affect the connectivity of the green space system by creating a part of the park site as a non-park facility. The purpose of this study is to analyze the change in the connectivity of the green space system in relation to the private-initiative park project. The spatial scope of this study is in Cheongju, Korea. There were 8 private-initiative park projects selected as research subjects. The IIC indicator and d_IIC indicator, which are widely used in the analysis of green space connectivity, were used as analysis methods. Changes in connectivity according to four scenarios were simulated. Upon analysis, the results revealed that private-initiative park projects can reduce the overall connectivity of green spaces. The connectivity of private-initiative park projects can be improved compared to the situation of unplanned development while maintaining the current state. Lastly, changes in connectivity due to private-initiative park projects vary by region. This study was meaningful as an early study that analyzed private-initiative park projects in terms of the connectivity of green areas and is expected to be used for the improvement of the park and green space system in the future.

뇌동맥류 환자의 임상분석

강삼석,박중욱,류재광,신동철,김봉환 全南大醫大 1983 전남의대학술지 Vol.20 No.1

3관능성 BPA-3MA를 기질로한 광중합형 치면열구전색재의 물성 연구

박경준,김경남,안광덕,김광만,한동근,전호욱 대한치과기재학회 1998 대한치과재료학회지 Vol.25 No.2

The BPA-3MA(bisphenol-A trimethacrylate) in which one of two hydroxy group was substituted by methacrylate was synthesized by reaction of Bis-GMA with methacryloyl chloride. To investigate the possibility to apply BPA-3MA as matrix of composite resin or pit and fissure sealant, BPA-3MA(3MA) or Bis-GMA(GMA) as matrix, TEGDMA as diluent, CQ as photosensitizer, EDMAB as photoinitiator and 5㎛ pyrogenic silica as filler were used for making experimental sealants. In addition, these experimental sealants were compared to a commercial Concise L/C White sealant(CLW, 3M Co, U.S.A.) for flexural strength, diametral tensile strength, amount of abrasion, surface hardness, water sorption and solubility, and degree of conversion. The flexural strength of CLW was the highest value but there was not significant difference with 3MA. Diametral tensile strength of all 3 groups were similar(p>0.05) and the amounts of abrasion of 3MA and GMA were less than that of CLW(p<0.05). The surface hardness of 3MA was higher than that of GMA(p<0.05) but similar to that of CLW. The water sorption of 3MA was less than that of GMA and CLW(p<0.05) and the solubilities of 3MA and CLW were than that of GMA(p<0.05). GMA and CLW were relatively polymerized well as compared to 3MA. From these results, pit and fissure sealant using trifunctional BPA-3MA as matrix had superior physical and mechanical properties to existing Bis-GMA sealant. Furthermore, it will be possible to develop composite resin having superior properties to existing composite resin.

법랑모세포성 섬유치아종에 대한 면역조직화학적 연구

박영욱,권광준 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.4

Ameloblastic fibroodontoma is a mixed odontogenic tumor in very rare occurrence that is composed of proliferating ectodermal mesenchymal component of odontogenic tissues such as enamel and dentin. Its frequency is about 2 percents of all odontogenic tumors, and it usually does not lead to pain. Therefore, it may be unexpectedly detected on gradual facial asymmetry or examination of unerupted tooth. And displacement of teeth have also been frequently reported. Most of ameloblastic fibroodontomas develop in average age of 10 years and rarely occurs in older person. The difference between sexes is similar, and are equally affected on maxilla and mandible, posterior prevalence is also showed. First case is unexpectedly detected in a 17 years-old male on examination of unerupted tooth and the second case is developed in a 13-yeas-old female who showed an asymptomatic swelling of left midfacial area. Each patient is tentatively diagnosed as a ameloblastic fibroodontomas and a genign tumor. Surgical encleation under general anesthesia was performed. the posroperative histologic diagnosis was ameloblastic fibroodontomas. No recurrances and good healing were showed during follow up period of 4 and 3 years from the encleation of the tumor. Now we present two cases of ameloblastic fibroodontomas with differential diagnosis and immunohistochemical charateristics.

천연두 백신 접종 후 발생된 급성 심근염 1예

박옥성,김종환,이광욱,윤성훈,강동구,이승욱,조상기 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Acute myocarditis complicating coronary vasospasm after smallpox vaccination is very rare complication that can be generally developed within less than 30 days after vaccination. Clinically and biochemically, this disorder is often mimic and highly suggestive of acute myocardial infarction. We report 21 years old man that had a history of a smallpox vaccination 3 weeks ago and prodromal symptoms(fever, malaise etc) a few days ago. hIe visited to our hospital because of abrupt onset of severe substernal chest pain, dyspnea and diaphoresis. At admission, electrocardiography was ST elevation in lead Ⅰ, aVL, V4, V5, and V6. The CK-MB level was 68 U/L, LDH level was 760 U/L, Troponin-Ⅰ was 24.64 ng/㎖, and Troponin-T was positive. 2D-echocardiograpy was normal left ventricular function, Clinically we presumed this disorder as acute myocardial infarction and we promptly performed the coronary angiography and revealed focal spasm in distal left coronary artery territory without critical stenosis in both coronary arteries. We diagnosed this disorder as coronary vasospam complicating acute myocarditis that is different with acute myocardial infarction, and we prescribed nitroglycerin and nifedipine. After discharge, he is now well without any symptoms and has been following up monthly at our outward department for 6 months.

가토 편축 악관절원판 제거 후 하악 과두 변화에 관한 실험적 연구

박광진,김경욱 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.4

Discectomy is the oldest and most commonly performed operation for the painful temporomandibular joint with internal derangement. It is the one operation for which there are longest follow-up study, with Eriksson, silver, and Tolvanen et al reporting good results in patients about 30 years after discectomy. About 80% to 90% of patients clinically experience relief from pain and dysfunction after discectomy, and interestingly, the results may improve with time. However such as Myrhaug found headache and Poswillo supposed pain and limitation of movement as postoperative complications, even though this operation had the longest follow-up term, several aspects of discectomy remain unclear. The controversies to discectomy for TMJ with pain and dysfunction have laid emphasis only upon clinical results, and then the histomorphological study was planned to evaluate the morphologic change of TMJ after discectomy. To clarify the nature of the change through an observation on the morphologic changes of articular cartilage and subchondral bone of the condyle resulting from experimental unilateral discectomy in rabbit, the author excised the left articular discs of 12 male rabbits(control 4 rabbits), weighing about 3kg, and at 1, 3, 6, 9 weeks following surgery, harvested both(left surgical site and right nonsurgical sits) TMJ. The specimens were examined with light microscope after H-E and MT stain and the obtained results were as follows. 1. Histopathological features showed thickening of articular zone and active proliferation of fibrocartilaginous zone associated with slight proliferative zone in surgical site than control group. Also replacement of chondrocytes in calcified cartilaginous zone into bone cells was observed. 2. There were thinning of thickness of each zone of articular cartilage except calcified cartilagnous zone was observed in nonsurgical site. 3. In MT stain of condylar trabeculae, there was increased calcification in nonsurgical site than control and surgical site and the degree of calcification was similar in surgical site and control group. 4. In both site of experimental group no features of degenerative changes were observed. From the above results, it is presumed that the morphologic changes of surgical site disectomy are compensatory remodeling process characterized by an hyperplastic reaction of the articular zone and fibrocartilaginous zone filling the void created by removing the disc, and the bone changes are secondary to changes in the cartilage. Increased degree of calcification seen in condylar trabeculae of nonsurgical site results from the excessive use of condyle of that site.

Helicobacter pylori 와 대장의 신생물과의 연관성

안중욱,류재현,김광호,박응범 대한대장항문학회 2001 Annals of Coloproctolgy Vol.17 No.3

보건관리 대행사업 평가도구의 타당성, 신뢰도 및 인과관계 검증에 관한 연구

박정일,조병희,구정완,김광종,김현욱,원종욱,이명숙,정문희 가톨릭대학교 산업의학센터 2001 韓國의 産業醫學 Vol.40 No.1

In order to verify the validity, reliability and relativeness of preliminary evaluation tool for the group occupational health services(GOHS), a questionnaire survey for doctors, nurses and hygienists of 18 GOSH institutions, and employers, health managers and employees of 340 enterprises was conducted. A factor analysis and correlation test for the statistical validity of the variables in the evaluation tool, a Chronbach's Alpha value for the reliability in the evaluation indices and a regression analysis for the relations of the evaluation model were performed. The results were as follows: 1.In factor analysis, thirty-three variables among 43 variables were selected as significant variables, ie 9 out of 11 for input index, 11 out of 14 for throughout index and 13 out of 18 for out put index. 2.Three evaluation(outcome) scales(evaluation by employer, health manager and employee) which composed of 16 identical items were used. 3.The Chronbach's Alpha values of input, throughout, out put and outcome indices were 0.5221, 0.5473, 0.7122 and 0.8546 respectively. 4.Regression equations of independent variables on the evaluation scales of employer, health manager and employee were all statistically significant.

고혈압과 당뇨병이 허혈성 뇌혈관질환의 위험인지로서의 Lipoprotein(a)에 미치는 영향

박정욱,박성경,이정욱,김영인,김용재,이광수,김범생 대한신경과학회 1996 대한신경과학회지 Vol.14 No.1

악관절 자기공명 T2 강조영상에서 Joint effusion에 관한 임상적, 방사선학적 연구

박광호,김경욱,김형곤 대한 두개하악장애학회 1994 대한두개하악장애학회지 Vol.6 No.2

Two of the methods for the examination of inflammatory changes in the synovial fluid of TMJ are ; aspiration and magnatic resonance imaging. While the aspiration method is invasive and limited by technical difficulties, magnatic resonance imaging, which could be classified as T1 or T2-weighted images, could visualize changes in volume and content of synovial fluid by inflammation through T2-weighted images only. Such inflammatory changes are among the factors causing pain in TMJ, and imaged as joint effusion, which is a high signal intensity within the joint cavities, and edema of posterior attachment. This detection of internal changes may be important in the choice of the method and prognosis of the treatment for TMJ. This study compared and analyzed T1 and T2-weighted images and examined T2-weighted images of joint effusion and edema from those patients who were tenatively diagnosed with internal derangement. The results were as follows : 1. Among the total of 128 patients and 131 joints, 13% were normal, 38.2% were anterior displacement with reduction, 42.7% were anterior displacement without reduction, and 6.1% were perforations. When morphological changes of meniscus were present, they appeared in 26 joints with the anteior displacement with reduction, and in most of the anterior displacement without reduction. Degenerative changes of the condyle heads were observed in 20 joints with anterior displacement without reduction, and in all 8 cases with perforation. 2. Joint effusion and edema images on MR T2-weighted images were present in 59 out of 131 joints(45.1%). 3. Presents of joint effusion was rare in normal and slight disc displacement cases, most frequent in the advanced disc displacement cases, and as it progressed toward perforation, tend to be rare again. That seems to indicated that joint effusion is associated with disc displacement. 4. Association between joint effusion and pain was highly significant; displacement with reduction showed 81.8%, without reduction 88.6% with total of 86.4%. 5. In the diagnosis of TMJ through magnetic resonance imaging, T2-weighted images can detect pathological changes and therefore seem to be more effective than the routine T1-weighted images.