성장에 따른 백서 절치유두의 신경 분포 변화

김영진,남순현,김현정,이재문,구대학 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.1

출생후 성장에 따른 절치 유두의 신경분포 및 변화를 관찰하기 위하여 생후 1, 5, 10, 15, 20, 25, 35일 된 백서와 완전히 성장한 백서를 대상으로 calcitonin gene related peptide (CGRP)를 이용한 면역조직 화학적 방법으로 관찰하여 다음과 같은 결과를 얻었다. 생후 1일군에서는 염주알 모양의 굵은 신경섬유가 성긴 결합조직에 나타났다. 5일군에서는 이러한 신경섬유의 밀도와 분지가 증가하여 상피하층으로 더욱 가까이 연장되었고 여러개의 varicosities도 관찰되었다. 10일군부터 신경섬유의 분지 및 밀도가 증가하였고 상피하층에서 신경총을 관찰할 수 있었으며 상피내 신경섬유의 진입을 관찰할 수 있었다. 20일군에서는 증가된 상피층내 신경섬유를 관찰할 수 있었으나 25일군에서부터 전반적인 신경섬유의 분포 및 밀도가 많이 감소되었으며 성장이 완료된 군에서는 chemosensory corpuscle 지역을 제외하고는 신경섬유를 거의 관찰할 수 없었다. The purpose of this study was to investigate the distribution of nerves in the incisive papilla of rat by each developing stage. The distribution on nerves in the incisive papilla was investigated by means of immunohistochemistry using an antibody against calcitonin gene related peptide (CGRP). The results were as follows : At 1 day after birth, CGRP-immunoreactive(IR) nerve fibers first appeared in loose connective tissue without forming an apparent terminal structure. At 5 days, the CGRP-IR nerve fibers increased in density and extended more to subepithelium. CGRP-IR nerve fiber began to penetrate into the epithelium at 10 days and reached maximum at 20 days. At 25 days, intraepithelial nerve fibers were not found, and the distribution and density of nerve fiber began to decrease. In adult rat, the nerve fiber almost could not be found in dome region except in chemosensory corpuscle region.

공공시설물 등록을 위한 지적도 활용방안

김영학 청주대학교사회과학연구소 2007 한국사회과학연구 Vol.29 No.1

지적도는 물리적 현황을 중심으로 수평적 관점에서 등록․관리하고 있어 다양한 정보요구를 반영하지 못하며, 정보의 질적 관리 및 정보수요자에게 다양한 양질의 서비스를 제대로 제공하지 못하는 실정이라 할 수 있다. 본 연구는 지적도의 등록객체를 조사․분석하여 등록정보의 확대와 권익을 보호하고 향후 3차원 토지관리의 교두보를 확보하는데 목적을 두고 있다. 이러한 목적을 달성하기 위하여 세부적으로 현 제도적 범위내의 지적도 등록사항을 조사․분석하고 공공시설물 등록의 실제 및 수요를 검토하며 외국의 지적도 등록객체를 비교․검토하여 공공시설물 등록에 따른 한계와 등록방향을 모색하였다. 결론적으로 기존의 지적도 등록사항과 지상․지표․지하의 공공시설물 중 입체의 수평적 등록이 가능한 시설물로 등록객체를 도출하였고 이는 제도권내에서 현실적인 토지관리의 극대화를 꾀하는 것으로 판단된다. 장기적으로는 입체적 등록이 가능한 모든 등록객체가 도면의 등록사항이 되어야 할 것으로 보며, 향후 3차원․4차원 토지관리를 구현하여 정보환경에 부합하는 정보수요자의 욕구를 충족시킬 수 있어야 할 것이다. 핵심어 : 등록객체, 지적도, 공공시설물, 토지관리, 토지정보시스템

가설재해의 원인 분석과 안전성 개선방안에 관한 연구

김용수,소용성,김천학 중앙대학교 건설환경연구소 2001 環境科學硏究 Vol.12 No.2

본 연구는 통계자료를 통해 건설재해 및 가설재해에 관한 현황을 조사하고, 가설재 제조 및 임대 · 유통업체와 가설재 사용업체를 중심으로 가설재 사용실태에 대한 설문조사 및 사례조사를 실시하여 가설재 사용실태에 관한 가설재해의 원인을 파악하고 가설재해 예방에 관한 개선방안을 제시하였고, 그 결과는 다음과 같다. 1.가설재 제조 및 임대 · 유통업체의 경우 가설재 제조 및 임대 · 유통업체의 문제점은 불량 가설재의 불법유통으로 인한 가설재 제조업체의 경영악화와 영세 가설재 임대 · 유통업체의 난립으로 인한 유통과정에서의 가설재 품질저하 그리고, 가설재 성능 검정제도의 미흡으로 나타났다. 그에 대한 개선방안으로는 가설재 제조업체의 제도적인 육성, 임대 · 유통업체에 대한 허가기준 강화, 그리고 가설재 성능 검정제도의 보완과 재사용가설재의 명확한 사용기준 마련을 들 수 있다 2.가설재 사용업체의 경우 가설재 사용업체의 문제점은 원청업체의 가설재에 대한 하도급업체로의 비용전가와 가설재 반입 및 사용시 형식적인 품질검사로 나타났다. 그에 대한 개선방안으로는 가설재에 대한 비용을 설계이전 단계에서부터 계획에 포함, 전 공정에 대한 품질검사 절차의 모델화, 그리고 현재 유통되고 있는 기존의 불량 가설재에 대한 자발적인 폐기의 유도를 들 수 있다. This study aims to find the cause of temporary work accidents and suggests a improvement plan for the prevention of accidents in temporary works. For this purpose, the following research methods were used: statistical analysis of construction accidents, questionnaire survey, and a case study. As conclusions, causes of temporary work accidents were showed and a improvement plan for the prevention of the accidents in temporary works was suggested for the 2 groups: (1) temporary material manufacturers, lease and sales companies, (2) construction companies which use those temporary materials

지베렐린과 에세폰의 葉面撒布가 '美白' 복숭아의 熟期와 品質에 미치는 影響

김영호,윤철구,임상철,김학현,이철희,최관순,김선규 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

In order to obtain the basic data for artificial maturity control of 'Mibaek' peach, GA and ethephon were foliar sprayed 4 weeks prior to harvest, and their effects on fruit maturity and quality were examined. GA and ethephon tended to decrease the fruit weight except 100mg ㆍ L-1 GA+50 to 100mg · L-1 ethephon treatment. GA increased the fruit firmness, and ethephon at higher concentration increased the fruit drop. Harvest date was advanced for 7 to 8 days by ethephon while was delayed for 6 to 8 days by GA treatment, regardless of concentration.

無酸素性 運動能力과 生理學的 變因의 關聯性

김기진,윤성원,김학열,정정진,우도영,노성규,손태열,안의수 江原大學校附設 體育科學硏究所 1991 江原大學校附設體育科學硏究所論文集 Vol.- No.16

Wingate test 및 Supramaximal exercise를 이용한 무산소성 운동능력의 측정시 나타난 변인의 관련성을 살펴본 본 연구를 요약하면 다음과 같다. Wingate test시 혈중젖산농도 최고치는 9.04±0.62mM로서 Supramaximal exercise시 보다 유의하게 높았으며, 혈장 LDH 및 CPK활성도는 두가지 운동부하후 모두 유의한 변화는 나타나지 않았다. 근전도상의 적분치, 중간파형빈도 및 평균파형빈도도 유의한 변화는 없었다. 등속성 수축시의 최대토오크는 양쪽 다리 모두에서 초당 60도의 각속도에서가장 높았다. Wingate test시의 최대파워는 등속성 수축시 최대토오크 및 Wingate test시 중간파형빈도의 직접적인 영향을 받는 것으로 나타났으며, 평균파워는 Wingate test시의 적분치 변화, 듣는 쪽 슬관절의 등속성 수축시최대토오크 및 Supramaximal exercise시 혈장 LDH 활성도의 직접적인 영향을 받는 것으로 나타났다. 이상의 결과에서 무산소성 운동능력과 관련지어 그 기전을 살피고자 할 때 체내 화학적 변화, 전기생리적 변화 및 발현능력의 복합성을 고려해야 하며 최대누적 산소결핍량의 활용가능성은 측정강도 결정방법을 중심으로한 계속적인 연구가 요구된다. The present study examined the relationship of variables related to anaerobic capacity with Wingate test and supramaximal exercise. Peak value of blood lactate concentration with Wingate test showeda significantly higher than suprammaximal exercise, and plasma LDH & median power frequency and mean power frequency were not any difference between two tests. Peak torque of isokinetic contractionh on knee joint showed a highest value in 60 degrees of angular velocity among a various angular velocity. Peak power of Wingate test was related to peak torque of isokinetic contraction and median power frequency of EMG with Wingate test, and mean power of Wingate test was related to integrated EMG with Wingate test, peak torque with isokinetic contraction of dominant knee joint and plasma LDH activity with supramaximal exercise. In this result, when it analyzed the mechanism of anaerobic capacity, ti was required the consideration of complexity according to biochemical alteration, electrophysiological alteration and revelation of performance, Appicapability of maximal accumulated O₂deficit was demaned a continuous study with the focus of exercise intensity.

강력한 운동부하후 혈중 젖산농도에 대한 성차의 비교

김학렬,조현철,최용준,김의영,안병근 龍仁大學校 體育科學硏究所 1995 體育科學硏究論叢 Vol.5 No.1

The purpose of this study was to compare sex differences of blood lactate concentration after strenous 800m sprint running and recovery 15 min. Trained-middle distance runners(Male:11, Female:10) participated as subjects of this paper. All subjects was performed a 800m sprint running, repeatedly. Blood samples for analysis a blood lactate concentration was collected in rest, warm-up after, lst 800m run after, recovery 15 min and 2nd 800m run after, respectively. The results and conclusion of this study was obtained as follows : 1. Male 800m best record in lst and 2nd run was shown a significantly high record, compared to female(lst: p<0.01, 2nd: p<0.001). 2. Blood lactate concentration after lst and 2nd run was not significant difference between male and female. However, Blood lactate concentration of both group displayed more high levels in 2nd run than lst run(p<0.001, respectively). 3. Blood lactate concentration of recovery phase was shown a significantly high lactate removal ability in male, compared with female(p<0.001). As results of above, Peak blood lactate concentration of male and female was not significant difference, but, male was shown a faster lactate removal ability compared with female.

치근단 병소의 임상적 연구

김상우,우순섭,유임학,이영수,심광섭 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.3

The purpose of this study was to find the clinical features of periapical lesions. A total of 130 periapical lesions which were obtained from biopsy and diagnosed histopathologically as periapical cyst, periapical abscess, and periapical granuloma at the Department of Dentistry in Hanyang University Hospital were throughly analysed according to the distribution and incidence of age, sex, location, and so on. The following results were obtained : 1.Out of 130 periapical lesions, 88 cases(67.7%) were periapical cysts, 30 cases(23.1%) were periapical abscesses, and 12 cases(9.2%) were periapical granulomas. 2.The periapical lesions occurred most frequently in the third decade, and followed by the fourth, fifth, sixth, and second decade. The periapical cysts occurred most frequently in the third decade(26.1%), the periapical granulomas in the fourth decade(33.3% ) the periapical abscesses in the sixth decade(26.7%). 3.The periapical lesions were more frequent in men than in women with the ratio of men to women of 1.4 : 1. The radio of men to women of periapical cysts was 1.6 : 1, that of periapical granulomas was 0.5 : 1, and that of periapical abscesses was 1.3 : 1. 4.The periapical lesions were more frequent in maxilla than in mandible with the ratio of 1.2 : 1. The ratio of maxilla to mandible of periapical cysts was 1.5 : 1, that of periapical granulomas was 0.5 : 1, that of periapical abscesses was 1 : 1. 5.The most commonly involved location of the periapical lesions was maxillary anterior teeth(40.8%), and followed by mandibular molars, mandibular premolars, and mandibular anterior teeth and maxillary molars. The most frequent location of the periapical cysts was maxillary anterior teeth(48.9%), that of periapical granulomas was mandibular molars(50.0%), that of periapical abscesses was mandibular molars(40.0%).

흰쥐의 연령증가에 따른 일시적 최대운동 부하시 혈장 콜레스테롤, HDL, LDL 및 TG 농도의 변화

김학렬,조현철,이선장,김영란,최용어 龍仁大學校 體育科學硏究所 1993 體育科學硏究論叢 Vol.3 No.1

The purpose of this study estimated whether a life style and diet pattern or natural phenomenon induced to aging in changes of plasma lipid component. Also, It was estimated from the changes of plasma lipid component followed acute maximal swimming exercise in different aged rats. Three months, nine months and sixteen months male rats of a Sprague-Dawley were housed in individual cages, and they were separated into each two group. - 3 month (12) : Control (6) and Experimental (6) - 9 month (22) : Control (10) and Experimental (12) - 16 month(16) : Control (8) and Experimental (8) In the 3.9.16 month, half of control group was randomly sacrificed. The other half of experimental group was performed with swimming exercise until exhaustive state. Water tank of 50cm depth and 50cm diameter was used for this study. Rats were given a 5 min warm up with swimming exercise, this warm up was followed by taking 5 min rest period, then animal exercised until exhaustion. Plasma cholesterol, HDL, LDL and TG levels followed aning of 3,9 and 16 months was not shown a significant difference between control group. Also, Plasma cholesterol, HDL and LDL levels of experimental group was not displayed statistically significant difference between 3,9 and 16 month group, but there was a significant difference(p<.05) between control and experimental group of 16 month, and between experimental group of 3 month and 16 month(p<.05) in levels of triglycerides. Conclusively, This study suggested that changes of plasma lipid component induced by aging was not phenomenan due to increase of age, and conditions except for life style and diet patern, etc. was similar to a changes of lipid component induced as exercise.

개의 흉추 및 요추에서 배측 추궁절제술 1례

김명철,이재일,이수진,김종만,황학균,서지민,이영원,김덕환,신상태 충남대학교 수의과대학 동물의과학연구소 2000 動物醫科學硏究誌 Vol.8 No.-

In dorsal laminectomy for the surgical treatment of thoracolumbar disc disease in dog, the bur could slip into the vertebral canal. For the decrease of this probability of danger, osteotome was used with instruments such as bur and rongeur in dorsal laminectomy. At thoracic vertebrae (T10-T11) and lumbar vertebrae (L5-L6) area, dorsal laminectomys were performed in a dog. In observation for 3 months after surgery, the dog revealed healthy physical condition. For the confirmation of healing condition at 3 months after dorsal laminectomy, two surgical sites were exposed by incision. Excellent healing response was observed with no adhesion and fibrosis in the vertebral canal.

자발성 뇌지주막하출혈 환자에서 Cardiac Troponin Ⅰ를 이용한 심근손상의 발생율

김용권,류진호,소정일,문원식,전병조,허탁,민용일 대한응급의학회 1999 대한응급의학회지 Vol.10 No.4

Background : More than 90% of acute stroke patients have measurable cardiovascular sequelae, but we have been often overlooked in formal discussions of treatment. If we estimate the incidence of myocardial injury in patients with spontaneous SAH, we may figure the possibility of cardiac dysfunction in such patients. This study was designed to investigate the incidence of myocardial injury in patients with spontaneous SAH using cardiac troponin I(cTnI). Methods : A prospective single emergency center study was performed to determined preoperative incidence of unrecognized cardiac injury in patients suffering spontaneous SAH. We include the spontaneous SAH patients who underwent serum measurements of the cardic troponin I immediately upon admission last six month period. ECG, CK, CK-MB and myoglobin were also performed at admission. We excluded the spontaneous SAH patients who had past history of myocardial ischemia and ECG abnormality. Results : Fifty-two patients(34 females, 18 males) with spontaneous SAH were studied prospectively. 18 patients(34.6% of the total study population) had cTnI level above 0.5ng/ml. ECG was performed in 52 patients and was abnormal in 15 of the 52 patients(28.8%). Conclusion : The measurement of cTnI has provided physicians with a myocardial marker that has a cardiac sensitivity for cardiac injury equal to that of CK-MB yet with greater specificity. So, cardiac troponin I is useful to estimate the incidence of myocardial injury in patients with spontaneous SAH. And we may estimate the possibility of cardiac dysfunction in such patients. This knowledge will hopefully aid in the care and improve the outcome.