Letters to the Editor : Computer-aided proximal caries diagnosis correlation with clinical examination and histology

Kang, Byung-Cheol,Scheetz, James P.,Farman, Allan G. 大韓口腔顎顔面 放射線學會 2003 Imaging Science in Dentistry Vol.33 No.4

We are writing this letter to correct misimpressions that could arise from a paper your journal recently published concerning Logocon Caries Detector (LCD). Kang et al reported a relatively poor performance for LCD as compared to other studies. However, when compared to the performance of the imdependent team of dentists who evaluated the same tooth surfaces visually without using LCD, one get a much different impression of LCD. Table 1 show the comparison. These visual results were collected as a part of Dr. Kang's study at the University of Louisville School of Dentistry and were included in the draft manuscript, but were unfortunately omitted from the final paper without the knowledge of two of the listed co-authors(AGF and JPS).

A Cytotoxic Component from Angelicae Koreanae Radix against L1210 and HL-60 Cells

Bae, KI-Hawan,Ji, Jong-Myung,Kang, Jong-Seong,Ahn, Byung-Zun The Pharmaceutical Society of Korea 1994 Archives of Pharmacal Research Vol.17 No.1

A cytotoxic sesquiterpene against L1210 and Hl-60 cells was isolated from Angelicae Koreanae Radix (bulk-kang-hwal). The component was identified as bisabolangelone by means of chemical and physical methods. The $ED_{50}$ values of it were $1.20{\;}\mu\textrm{g}/ml$ against L1210 cells and $2.30{\;}\mu\textrm{g}/ml$ against HL-60 cells. Bisabolangelone was found in bulk-kang-hwal but not in kang-hwal.

Forest therapy program reduces academic and job-seeking stress among college students

Byung-Hoon Kang1 and Won-Sop Shin 인간식물환경학회 2020 인간식물환경학회지 Vol.23 No.3

Background and objective: Recreation or activities in forest are regarded as therapy. Many forest therapy programs have been developed and assessed in the domestic. This study was conducted to investigate the effect of the forest therapy program on academic and job-seeking stress in college students. Methods: Thirty five subjects were selected as the experimental group and 25 as the control group, and 29 subjects in the experimental group and 11 in the control group participated in the follow-up test to verify the persistence of stress reduction effects. The forest therapy program was carried out once a week for 2 hours each from September 4 to December 4, 2018, adding up to total eight sessions. Results: The experimental group showed statistically significant reduction in both academic stress and job-seeking stress, whereas the control group did not. For the persistence of the forest therapy program, the experimental group did not show a statistically significant difference between the posttest and the follow-up test, and thus the stress reduction effect was maintained. Conclusion: This study proved the reduction of academic and job-seeking stress in forest therapy programs and the persistence of the stress reduction effect of the forest therapy program. The result is consistent with the Stress Recovery Theory (SRT) that shows the stress reduction effect of nature. In addition, it has significance in that it has verified that the program using the forest on campus can reduce stress of most college students.

Institution for Regional Innovation System: The Korean Case

Kang,Byung-Joo,Oh,Deog-Seong 세계과학도시연합 2015 World Technopolis Review Vol.4 No.2

There is an implicit assumption in most regional innovation policy studies that once a policy has been made the policy will be implemented. This assumption is not valid for regional innovation policies formulated in many countries. This assumption rests upon certain political and organization conditions. It is frequently said that regional innovation system in Korea is one of the successful cases because of properly established institution for the implementation of innovation policies. The components of institution for innovation are defined in this article. For the analysis of institution for regional innovation system in Korea, three aspects such as organization, policies & programs, and governance structure were taken into account. Institution for regional innovation system in Korea is analyzed with three aspects: (1) organization for policy implementation, (2) innovation policy, and (3) governance structure. Firstly, organizations for innovation in Korea are composed of three categories such as organizations for policy formulation, organizations for policy implementation and agencies for coordination. Secondly, there are two categories of policies for innovation: (1) policies for the enhancement of national competitiveness and policies for the regional innovation capacity building, and (2) policies for fostering manpower and policy for regulatory reform. Thirdly, innovation governance in Korea is composed of three layer structure: (1) top level governance which is composed of two committee, three ministries and two agencies, (2) local level governance such as one innovation related offices and one center for regulatory reform, and (3) one category of agency for coordination as a regional platform.

韓國型 Turnip Mosaic Virus의 純化

김병훈,권오병,마병철,강미란,권무식 성균관대학교 생명과학자원연구소 1996 生命資源科學硏究 Vol.3 No.1

Chinese cabbage(Brassica campestris subsp pekinensis) useful for making a traditional Korean food, Kimchi, has been considered as the most important vegetable in Korea. In order to supply large quantity of chinese cabbage to the consumer, the mass cultivation is demanded. However, the mass production has been faced to serious problem due to fungal, bacterial and/or viral infections. It has been reported that the viral infections are the worst phatogeruc causes in a number of plants. In the chinese cabbage, turnip mosaic virus(TuMV) is the most serious pathogen. Five different strains of TuMV(Cl, C2, C3, C4, and C5) were identified in the world. We are reporting two strains(C4, C5) purified from Brassica nigra. They are all filamentous on electron micrographs. The TuMV C4 is about 1,300nm long, whereas the C5 is about 1,200nm long in average. They are larger than those reported previously(680-900nm). They will be used to produce monoclonal antibodies against the TuMV coat proteins. The antibodies arc required to develop a sensitive and specific screening methods for the TuMV infected plants.

山間村의 所得增大를 위한 適地産業 開發方案

李康寧,高永杜,金正敎,河浩成,姜奉淳,朴道秉,姜淮 慶尙大學校 1978 論文集 Vol.17 No.2

This study attempts to analysis the present situation of farm management and the related industriesin order to present the suitable industries for promoting the farmers' income in mountain area. This study is based on the survey data obtained from 30 sample mountain vellages in 10 Guns located in central, wetern and northen Kyeougnam Province, where lots of mountain vellages are scattered here and there. Major findings obtained from the analysis are summarized as follows: 1) Area of cultivated land in mountian villages was generally smaller than that in plain vellages. BUt major finding of thes tudy indicated that the standard of living in the study area depended upon not only the size of cultivated land but also the skills of management to understand exavtly the regional and togographical situaltion, to utilize the developmental resources effectively, and to diversify income sources. This means that upbringing of competent Saemaul leaders is very important for promoting the income of mountain villages. 2) Various crops were being planted in a samll scale inmountain area. And those crops except rice adn barley were planted for self-sufficiency. Therefore, it is desired to select and cultivate intensively the kinds of crops which are regionally adn topographically suitable for maximizing farm inceomes of subsistant farmers. 3) The survey found out that in mountain area the farming of extensive fruits like chestnuts, persimmons, etc. is more favorable than that of intensive fruits like apples, pears, etc. 4) Because of topographical inappropriateness and lack of fertile cultivates land in mountain area, mowt vegetables, except onions in a few regions, were growing in a small scales for self-sufficiency. And the future of the vegetable cultivationin mountain area is also gloomy. 5) Since various grasses are abundantly growing in the wild in mountain area, the mountain villages are suitable for raising the herbivorous animals. Therefore it is recommeded to encourage raising the herbivorous animals, especially cattle, as one of the major income sources in mountain area. 6) It is true that sericulture has greartly contributed to the economic growth in mountain area with aboundant land suitable for mulberry trees. Recenly sericulture has, however, been shrinking due to the barriers of silk exportation. Without the barriers of silk exportation, sericulture will still play an important role on providing one of the major sources tom mountain villages. 7) The miscellaneous trees in most forest around the mountain villages were growing planlessly. Those parts of the forest are needed to be renewed by planting the useful, endurable, and regionally and topographically suitable kinds of trees.

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

기업의 전략적 자세 확립과 정보기술의 활용

강병구 高麗大學校 産業開發硏究所 1994 産業開發硏究 Vol.3 No.-

양방과 한방에 대한 인식 조사

강병조,채병진,권도훈,김풍택,김재식 대한생물치료정신의학회 1999 생물치료정신의학 Vol.5 No.2

In order to find out whether or not the general public have understanding of modern and oriental medical practices and if they do what the extent of their understanding is, 640 subjects were chosen over a four-month period in 1998. They were given questionnaires to answer and the key results of the study are as the following:1. The public were found to prefer modern medicine to oriental medicine.2. About 1/3 were using both modern and oriental medicines.3. 4/5 of the cases believed certain diseases are to get better efficacy from oriental medicine and such diseases are known to be neuraligia, myalgia, stroke, lumbago and gastric disease.4. 3/4 believed that modern medicine is good for treatment while oriental medicine is good as restorative.In summary, this study show that major medical system is modern medicine and oriental medicine is only for restorative and complementary.

물체-검출기 동기회전 방식의 X-선 단층영상시스템 설계 및 성능개선에 관한 연구

강성택,조형석,노병옥 제어·자동화·시스템공학회 1999 제어·자동화·시스템공학논문지 Vol.5 No.-

This paper describes my experiences in delivering a 3-year of psychological service to the Korean National Archery Team(1996-1998). The process of developing psychological skills training programs(PSTP) over a 3-year period is outlined. The contents of PSTP are explained and the importance of full cooperation from coaches, sport organization, and the ethics of the coach is discussed as well.