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황수정 ( Soo Jeong Hwang ),백대일 ( Dai Il Paik ),김현덕 ( Hyun Duck Kim ),진보형 ( Bo Hyoung Jin ),배광학 ( Kwang Hak Bae ),김남희 ( Nam Hee Kim ) 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.2
연구목적. 일부 연구자들은 치은염 예방 또는 치료 성분이 포함되어 있는 특수세치제의 치은염 억제 효과를 입증하기 위하여 Loe의 실험치은염모형을 변형한 변형실험치은염 모형을 사용하고 있으나, 변형실험치은염모형에 대한 안전성 검토는 미비한 상태이다. 따라서, 본 연구는 3주간 구강분할동시현상비교연구법(split mouth method)을 사용하여 변형실험치은염모형의 안전성을 검토하고 치은염의 일부 기구를 알아보고자 하였다. 연구방법. 성인남자 59명을 대상으로 3주 동안 잇솔질시 잇솔질방지판과 세치제를 편측 소구치부위에 착용하여 기계적 잇솔질을 금지한 실험치은염을 발생시켜 잇솔질방지하악소구치부와 잇솔질허용하악소구치부의 치은염지수, 치면세균막지수, 치은열 구액내의 MMP-9의 농도, IL-1β의 농도를 비교 검토하였다. 연구결과. 잇솔질방지하악소구치부는 3주간의 실험기간동안 실험시작 후 2주차 때 치은염지수와 치면세균막지수가 가장 높았으며 시간에 따라 차이변화가 유의하였으며(p<0.02) 실험 종료 후 초기상태로 회복되었다. 3주간의 실험기간동안 잇솔질방지하악 소구치부와 잇솔질허용하악소구치부 사이에서는 치은열구액내 염증지표인 MMP-9의 농도변화는 유의하지 않았고 염증전단계지표인 IL-1β의 농도변화는 유의하였으나(p=0.03) 잇솔질방지하악소구치부의 MMP-9의 농도와 IL-1β의 농도는 유의한 상관 관계를 보였다. 결론. 잇솔질방지하악소구치부내 MMP-9의 농도는 유의하게 변화하지 않았으므로 치은의 직접적인 파괴는 나타나지 않은 것으로 사료되어 변형실험치은염모형은 세치제의 효과를 평가함에 있어 안전한 모형으로 사료되었다.
남상욱,송재경,최종호,홍순도,이종학,허광현,박일영 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.3
This study was undertaken to review the case series of 216 ectopic pregnancies admitted to the Department of Obstetrics and Gynecology, Pohang Sunrin Hospital from January, 1990 to December, 1991. The incidence of ectopic pregnancy was relatively high, being found to be 1 in 34.4 delivery cases. On the symptomatology, low abdominal pain was encountered in 96.8 percent, amenorrhea in 93.5 percent and vaginal bleeding in 16.2 percent in order. The fallopian tube was the most frequently, being found to be 98.6 percent, followed by the ovary with 0.9 percent and the cervix with 0.5 percent.
광주시 환경오염에 관한 조사연구 (Ⅰ) : 대기오염 및 소음에 관하여 A Study on Air Pollution and Noise Level
남현근,류일광,이치영,강영식 광주보건대학 1978 論文集 Vol.4 No.-
Air pollution in Gwangju area was examined for six months from August, 1977 to January. 1978. The surveyed area was divided into four; Industrial, Commercial, Residential and Park area. 'Ten surveying sites which were representing the characteristics of each area were selected. The measuring methods were; the Lead dioxide cylinder method for Sulfur oxides, Triethanolamine plate method for Nitrogen dioxide, Deposit Gauge method of Dustfall, and the Rion noise meter for Noise level. The results we obtained are as follows. 1. SULFUR OXIDES The mean of Sulfur oxides was 0.355㎎SO₃/day/100㎠PbO₂, ranging from 0.12 to 0.57㎎SO₃/day/100㎠PbO₂. The mean value of Sulfur oxides was 0.57㎎SO₃/day/100㎠PbO₂ for Reidential area, 0.51㎎SO₃/day/100㎠PbO₂ for Commercial area(Keumnam-Ro 3 Ka), 0.34㎎SO₃/day/100㎠PbO₂for Industrial area (Im-Dong), and 0.21㎎SO₃/day/100㎠PbO₂ for Park area, respectively. 2. NITROGEN DIOXIDES The mean value of Nitrogen dioxides was 40.75㎍/NO₂/day/100㎠, ranging from 29.79 to 40.75㎍ NO₂/day/100㎠. At Commercial area where the value was the highest, the range of Nitrogene dioxides level was 35.32~50.88㎍ NO₂/day/100㎠. 3. DUSTFALL The mean value of dustfall was 12.8ton/㎢/month, ranging from 5.032 to 24.11 ton/㎢/month. The dustfall for Commercial area was higher than any other area. 4. NOISE The mean value of noise level was 58 dB(A) ranging from 43.3 to 64.4 dB(A). The noise of 64.4 dB(A), at Commercial area was higher than any other area.
최소자승법을 이용한 다수 베타 방출 핵종 혼합물의 방사능 분석
선광일,남욱원,공경남,김창규,이동명,이상국 대한방사선 방어학회 2001 방사선방어학회지 Vol.26 No.4
베타선 스펙트럼의 최대 에너지가 확실하게 구별되는 2개의 핵종만을 포함하는 혼합시료의 경우에는 최대 에너지가 다르다는 점을 이용하여 손쉽게 각 핵종의 방사능값을 측정할 수 있다. 그러나 3개 이상의 베타 방출 핵종이 포함된 혼합물에 대해서는 각 핵종의 스펙트럼이 서로 겹치기 때문에 이러한 방법으로 구해진 방사능값은 신뢰도가 떨어지게 된다. 따라서, 본 연구에서는 최소자승법을 이용하여 혼합물의 중첩된 베타선 스펙트럼을 각각 분리 정량분석할 수 있는 밥법을 제시하였다. 또한, 실제로 4개의 베타 방출 핵종 ^3H, ^14C, ^16Cl, 90Sr)이 혼합된 사료를 조제하여 본 분석법을 검증한 결과 최고치 Reference value)와 분석치가 7% 이내에서 잘 일치함을 보였다. It is possible to count and perform quench correction on two β-label samples so long as the maximum β-energies are sufficiently different. However, when the coventional technique is applied to the radioassay of a mixture of more than three nuclides, the reliability of the activiteis determined is considerably reduced, resulting from the large overlapping of liquid scintillation pulse height distributions of ezch nuclide. A technique that allows the activities of multiple β-labeled samples to be radioassayed was proposed by using the least square method. The technique was applied to mixture samples of ^3H, ^14C, ^16Cl, and ^90Sr. The analytical values were in good agreement with the reference values within 7% relstive error.
관절원판 유착을 동반한 악관절 내장증 환자의 수술후 증상의 변화
김형곤,남광현,박광호,허종기,김일수,최희수 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.3
Purpose: The aim of this study was to find the clinical characteristics of the patients who had temporo-mandibular joint internal derangement(ID) with disc adhesion(adhesion group) compared to only disc displacement without disc adhesion, perforation, hyperemia, and so on(ID group) . Materials and methods: Thirty seven joints were included in adhesion group and 54 joints in ID group of all 174 patients(174 joints) treated surgically and had been checked periodically over 12 months at TMJ clinic of Yongdong Severance Hospital, Yonsei University, between 1992 and 1997. Mouth opening range, pain during mouth opening and biting, headache, neck/shoulder pain and TMJ sound were checked his/her every visit before and after surgery. Results: The maximum mouth opening was improved significantly after postoperative 3 months in two groups(p<0.01), but adhesion group was less improved. Pain during mouth opening was improved significantly over 3 months after surgery in adhesion group(p<0.01), but in ID group 1 month after surgery. Biting pain was improved and maintained it after surgery and not significant difference between two groups. Headache and neck/shoulder pain were much improved after surgery(p<0.01) , but slight relapse was found in adhesion group after 12 months. TMJ sound was more found in adhesion group after 1 month(p<0.05), but after 3 months, no significant difference was found between two groups. Conclusions: The postoperative results of adhesion group were worse than ID group. Therefore, it is considered more carefully to diagnose and treat in cases of internal derangement with adhesion.