Polyphosphate가 Porphyromonas endodontalis의 성장에 미치는 영향에 관한 연구

최성백,최호영,민병순,박상진,이진용,최기운 大韓齒科保存學會 1998 Restorative Dentistry & Endodontics Vol.23 No.1

Polyphosphate has been used to prevent decomposition of foods and has been shown to have inhibitory effect on the growth of gram positive bacteria. The purpose of this study was to evaluate the effect of polyphosphate on the growth of Porphyromonas endodontalis, a gram negative endodontopathic bacterium. Porphyromonas endodontalis ATCC 35406 was grown in the presence of polyphosphates with different chain lengths. Inhibitory effect of each polyphosphate which was added at the beginnig or during the culture, was determined by measuring the optical density of the bacterial cell at 540nm and by viable cell count. The results from this study were as follows : 1. Polyphosphates were shown the growth inhibition of the Porphyromonas endodontalis. 2. The minimal inhibitory concentration(MIC) of polyphosphate was observed to be 0.04%. 3. Polyphosphates with chain lengths of 25 and 75 demonstrated the greatest inhibitory effect on the growth of Porphyromonas endodontalis. 4. Polyphosphates are bactericidal to Porphyromonas endodontalis, demonstrating the growth inhibition of the bacterium. The overall results suggest that use of polyphosphate may affect the growth of Porphyromonas endodontalis. Further studies will be needed to confirm the effect of Polyphosphate.

한의진단명과 진단요건의 표준화 연구 III : 3차년도 연구결과 보고

최선미,양기상,최승훈,박경모,박종현,심범상,김성우,노석선,이인선,정진홍,이진용,김달래,임형호,김윤범,박성식,송태원,김종우,이승기,최윤정,신순식 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the third year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : - analyzing and differentiating of epidemic febrile disease - analyzing and differentiating in accordance with the Sasang constitution medicine based on four-type recognition - differentiation of disease according to pathological changes of Chong and Ren channels - standards for diagnosis of women's disease - standards for diagnosis of children's disease - standards for diagnosis of motor and sensor disturbance (-muscle. born, joint, etc.) - standards for diagnosis of neuropsychiatric disease - standards for diagnosis of five sense organ disease - standards for diagnosis of external disease The indivisual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name, notion of diagnosis pattern, index of differentiation of symptoms and signs, the main point of diagnosis, analysis of diagnosis pattern, discrimination of diagnosis pattern, prognosis, a way of curing a disease, prescription, herbs in common use, disease appearing the diagnosis pattern, documents. The standards for diagnosis of each disease was arranged by the diagnostic requirements in the following order : another name, notion of disease, the main point of diagnosis, analyzing and differentiating of disease, analysis of disease, discrimination of disease, prognosis, a way of curing and prescription of disease, disease in western medicine appearing the disease in oriental medicine, documents.

우리나라 長壽者의 生活 및 意識調査에 관한 硏究 - Ⅴ. 過去의 健康疾病 및 苦痛에 대한 態度 -

최진호(Jin-Ho Choi),변재형(Jae-Hyeung Pyeun),최재수(Jae-Sue Choi),임채환(Chae-Hwan Rhim),김수현(Soo-Hyun Kim),김정한(Jeung-Han Kim),이병호(Byeung-Ho Lee),우순임(Soon-Im Woo),최선남(Sun-Nam Choi),변대석(Dae-Seok Byun),김무남(Mu-Nam Ki 한국식품영양과학회 1987 한국식품영양과학회지 Vol.16 No.4

우리나라 長壽者의 生活 및 意識調査硏究의 一環으로 長壽者의 過去의 健康, 疾病 및 苦痛에 대한 對處態度 등을 調査ㆍ比較한 結果는 다음과 같다.<br/> 1. 更年期(40~60歲)의 健康狀態가 『대단히 건강했다.』가 71.0%로 가장 많고, 그 다음이 『건강이 보통이었다』가 21.6%로서, 전체 장수자의 91.6%가 보통이상의 건강상태를 유지했다.<br/> 2. 老年期에 접어든 후 疾病이나 負傷을 당한 經驗이 『없었다』고 대답한 경우가 74.7%로 대부분을 차지한 반면 『있었다』고 대답한 경우는 22.6%에 불과했다.<br/> 3. 疾病이나 負傷이 『있었다』고 한 경우의 內譯을 比較하여 보면 『消火器疾患』이 32.6%로 가장 많고, 그 다음이 『腦率中ㆍ高血壓』 14.0%, 『心臟病』 14.0%, 『呼吸器疾患』 12.8%의 순으로 되어 있었다.<br/> 4. 苦痛에 대한 經驗을 調査하여 본 結果, 苦痛이 『없었다』가 55.7%, 『있었다』가 44.3%로 거의 비슷한 傾向이었고, 苦痛에 대한 經驗內譯을 보면 『가정생활』이 85.1%로 대부분을 차지한 반면 『사업』 등은 10.1%에 불과해서 가정생활에 많은 문제가 있었음을 알 수 있었다.<br/> 5. 苦痛에 대한 對處態度롤 比較하여 보면 빨리 『잊을려고 努力했다』가 51.2%로 가장 많았고 그 다음이 『계속 걱정을 했다』(33.3%), 『걱정을 하지 않았다』(7.1%)의 순이었다.<br/> 6. 長壽한 사람들의 初經年齡은 『16~18歲』가 38.8%로 가장 많고, 그 다음이 『19歲이후』가 25.2%로서 전체 장수자의 64.0%가 16세이상에서 初經이 나타났으며, 閉經年齡은 『41~43歲』가 36.4%로 가장 많고, 그 다음이 『44~46歲』가 28.5%로서 전체 장수자의 64.9%가 46歲이하에서 閉經現象이 나타났다. 따라서 장수한 사람들의 初經年齡은 현재보다 4~5年 늦은 반면 閉經年齡은 현재보다 4~5年 빨랐음을 알 수 있었다. The present study was designed to be link a part of the research on the investigation on daily life and consciousness of the longevous people in Korea, and to investigate the health conditions, and the attitude on disease and suffering of longevous people in the past.<br/> 1. By the health conditions of longevous people between 40 and 60 years, "very good" showed the highest figure of 71.0%, followed by "ordinary" (21.6%). Consequently it is found that 92.6% of total longevous people surveyed maintained the good health conditions above ordinary.<br/> 2. Of the experiences of disease and/or injury after 60 years of longevous people, "never" showed the highest figure of 74.7%, while "had" showed the only 22.6% of total longevous people surveyed.<br/> 3. Of the details of disease and/or injury after 60 years of longevous people, "digestive disease" showed the highest figure of 32.6 %, followed by "apoplexia cerebri & hypertensions" (14.0%) and "heart disease" (14.0%), and followed by "respiratory disease" (12.8%).<br/> 4. Of the experiences of suffering between 40 and 60 years of longevous people, "never" showed 55.7% of total longevous people surveyed, while the frequency of suffering decreased in the order of "once" (22.7%), "2 times" (15.8%) and "3 times" (4.7%). By the details of suffering between 40 and 60 years of longevous people, "family life" showed the highest figure of 85.1%. followed by "business" (10.1%).<br/> 5. By the attitude on suffering of longevous people, "tried to forget soon" showed the highest figure of 51.2%, followed by "continuous worried" (33.3%). and followed by "not worried" (7.2%).

우리나라 長壽者의 生活 및 意識調査에 관한 硏究 - Ⅴ. 過去의 健康疾病 및 苦痛에 대한 態度 -

최진호(Jin-Ho Choi),변재형(Jae-Hyeung Pyeun),임채환(Chae-Hwan Rhim),양종순(Jong-Soon Yang),김수현(Soo-Hyun Kim),김정한(Jeung-Han Kim),이병호(Byeong-Ho Lee),우순임(Soon-Im Woo),최선남(Sun-Nam Choe),변대석(Dae-Seok Byun),김무남(Mu-Nam 군산대학교 수산과학연구소 1994 군산대학교 수산과학연구소 연구논문집 Vol.1 No.-

The present study was designed to be link a part of the research on the investigation on daily life and consciousness of the longevous people in Korea, and to investigate the health conditions, and the attitude on disease and suffering of longevous people in the past. 1. By the health conditions of longevous people between 40 and 60 years, ""very good"" showed the highest figure of 71.0%, followed by ""ordinary"" (21.6%). Consequently it is found that 92.6% of total longevous people surveyed maintained the good health conditions above ordinary. 2. Of the experiences of disease and/or injury after 60 years of longevous people, ""never"" showed the highest figure of 74.7%, while ""had"" showed the only 22.6% of total longevous people surveyed. 3. Of the details of disease and/or injury after 60 years of longevous people. ""digestive disease"" showed the highest figure of 32.6%. followed by ""apoplexia cerebri & hypertensions""(14.0%) and ""heart disease""(14.0%), and followed by ""respiratory disease""(12.3%). 4. Of the experiences of suffering between 40 and 60 years of longevous people, ""never"" showed 53.7% of total longevous people surveyed, while the frequency of suffering decreased in the order of ""once""(22.7%), ""2 times""(15.8%) and ""3 times""(4.7%). By the details of suffering between 40 and 60 years of longevous people. ""family life"" showed the highest figure of 85.1%, followed by ""business""(10.1%). 5. By the attitude on suffering of longevous people, ""tried to forget soon"" showed the highest figure of 54.2%, followed by ""continuous worried""(23.3%), and followed by ""not worried""(7.2%).

비복신경이식을 이용한 긴 거리의 말초신경 결손부 수복

이종호,이세영,김명진,이은진,안강민,김성민,최원재,명훈,황순정,서병무,최진영,정필훈 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.2

The surgery of oral and maxillofacial area poses the risk of cranial nerve damage such as trigeminal nerve or facial nerve. Inferior alveolar nerve is prone to damage in the third molar extraction, implant installation, orthognathic surgery, open reduction and rigid fixation, and tumor ablation surgery. On the other hands,facial nerve is likely to be damaged or sacrificed with trauma or parotidectomy. In case of inferior alveolar nerve injury, the incidence is reported to be about 1.3%. The nerve function will almost recover in minimal damage, but it won't recover at last in total damage of a part of nerve unit. In latter cases, nerve regeneration in intended by allograft as nerve substitute or various route of merve condit. But the recovery with autograft is believed to be most relialbe mrthod in the rapair of long-span(longer than 15㎜)nerve defect. We have performed autologous sural nerve graft in the repair of nerve defect, which is caused by resection of benign or malignant tumor. Hereby we report the method of nerve harvesting, recovery of defected peripheral nerve and the complications of donor site with the discussion of sural nerve anatomy.

백서 척수후근절로부터 슈반세포의 효과적인 체외 배양법

김성민,이종호,김남열,안강민,최원재,최시호,차미주,이주영,황순정,장정원,명훈,최진영,서병무,정필훈,김명진 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.4

Schwann cells(SCs), an important component of the peripheral nervous system, intract with nerous to mutually support growth and replication for the peripheral nerve regentation. Recently, ading SCs to the lumen of guidance channel is widely tried to improve regeneration or to make regeneration possible over otherwise irreparable gaps. however, it is not easy to isolate and multiplicate SCs as much as enough to help the axonal regeneration. For the allogeneic SCs source for tubular nerve guidance, we developed a little bit improved technique of harvesting and multiplicating SCs. by culturing dispersed dorsal root ganglia in specially designed medium with growth factors and serial processing, we repeatedlly generate relatively homogenous SC cultures. Our technique was compared with other methods of literature using immunostaining methods such as GFAP, S100, BDNF and the total SC count assessment at different time interval after primary culture.

裁植距離가 輸出用 가지(Solanum melongena. L)의 生育 및 收量에 미치는 影響

최성관,이재필,진동호,오주성,박흥식,정순재 동아대학교 농업생명과학연구소 2001 農業生命資援硏究 Vol.10 No.1

This study was carried out to investigate effect of the planting distance of Eggplant(Solanum melongena. L). These grafting seeding "Torobambica", rootstock "Jang Ja" and "Chuk Yang" were tested to investigate the differences between the growth of eggplants and the numbers of eggplants which can be influenced by the planting distance such as 100×50cm, 100×60cm and 100×70cm. The results are summarized as follows: 1.The plant height, leaf length, leaf, width, leaf area and the number were good for the growth change of each cultivar from planting distance such as 100×70cm. 2.The grafting seedlings "Chuk YanglTorobambica" grew and developed better than "Jang Ja" and "Jang Ja/Torobambica" 3.Effects of scion on the rootstock for planting distance "Chuk Yang" grew and developed better than "Jang Ja"

구강악안면영역의 3차원 CT 영상 재형성시 역치 및 불투명도에 대한 연구

최문경,이삼선,허경회,이원진,최순철 대한구강악안면방사선학회 2009 Imaging Science in Dentistry Vol.39 No.1

Purpose : This study was designed to determine a proper threshold value and opacity in three-dimensional CT volume rendering of oral and maxillofacial area. Materials and Methods : Three-dimensional CT data obtained from 50 persons who were done orthognatic surgery in department of oral and maxillofacial radiology of Seoul National University retrospectively. 12 volume rendering post-processing protocols of combination of threshold (100HU, 150HU, 221HU, 270HU) and opacity (58%, 80%, 90%) were applied. Five observers independently evaluated image quality using a five-point range scale. The results were analyzed by receiver operating characteristic curves, ANOVA and Kappa value. And three oromaxillofacial surgeons chose the all images that they thought proper clinically in the all of images. Results : Analysis using ROC curves revealed the area under each curve which indicated a diagnostic accuracy. The highest diagnostic accuracy appear with 100HU and 58% opacity. and the lowest diagnostic accuracy appear with 221HU and 58% opacity that are being used protocol in department of oral and maxillofacial radiology of Seoul National University. But, no statistically significant difference was noted between any of the protocols. And the number of proper images clinically that chosen by three oromaxillofacial surgeons is the largest in the cases of protocol 8 (221HU, opacity 80%) and protocol 11 (270HU, opacity 80%) in one after the other. Conclusion : Threshold and opacity in volume rendering can be controled easily and these can be causes of making an diagnostic accuracy. So we need to select proper values of these factors.

소결조건이 소결 청동계 마찰재의 마찰특성에 미치는 영향

최병호,박노진,정순욱 金烏工科大學校 1998 論文集 Vol.19 No.-

The effect of sintering conditions(temperature and time) on the frictional properties of sintered bronze-base were investigated. It was observed that with increasing sintering temperature up to 840℃ and sintering time up to 60 min. the hardness, bending strength and coefficient of friction increased continuously, but the wear rate decreased. At sintering temperature of 860℃, however, their mechanical and frictional properties decreased rapidly due to the sweating phenomenon of tin. In our experiments, the optimal sintering condition is that sintering temperature is about 840℃ and sintering time is about 60 min.. Its average grain size is about 14.2㎛.

중소기업형 CIM시스템 구축을 위한 생산계획수립 및 실적파악 모듈

최후곤,신완선,장중순,서준성,여명구,안동근,김진봉 成均館大學校 科學技術硏究所 1996 論文集 Vol.47 No.2

This study Focuses on developing several modules involved in an integrated production information system for medium- or small-sized industries. The modules of order management, quality control, production scheduling, and shop management are executed for an example case industry. The potential values of this research includes that the major information modules to collect, analysis, and display production data and shop data for constructing the computer integrated manufacturing system(CIMS) are programmed with various features of medium- or small-sized industries