Acoustic Duct 내부에 장착된 아이오노머의 이온기 변화에 따른 흡음패턴 측정

장순석,김준섭,이제형,박재철 조선대학교 전자정보통신연구소 2001 電子情報通信硏究所論文誌 Vol.4 No.2

Nowadays, as the industrial technology and instrumentation are developed, the interest of the characteristic improvement of sound absorbing materials is rising. Recently new sound absorbing materials are being developed and manufactured for commercialization. But most of sound absorbing materials are polymer-typed or are fabricated by polymers (mixtures of polymer and glass fiber, asbestos...) for better physical characteristic. However, there was not much research about sound absorption change by the change of the ionic nature. In this paper, I composed polymers that include alkaline or acid, or other polymer that have the ionic nature to improve sound absorption characteristic and searched the characteristic pattern of the sound absorption of polymer. I used probe microphone instead of 1/4 condenser microphone such as two- microphone method in order to measure in-duct absorption coefficient of specimen of ionomers that are thin and small so that measuring absorption coefficient is not well defined.

교육의 정치적 중립성에 대한 철학적 함의

송준석 한남대학교 교육연구소 1995 교육연구 Vol.3 No.-

The purpose of this study is to investigate the paradox and the implications of the political neurality of education. In fact, heretofore the political power groups have made use of a means for controlling educational system, curriculum and teacher through the concept of political neutrality of education. They have oppressed all the anti-groups in the name of political neutrality. The neutrality of the power group is nothing but the illusion of concealing the truth. Therefore they have ulitized education as a means of political control. Here is the paradox of political neutrality. From this point of a view, paradoxically, to gain the political neutrality of education we must insist on the paratisan spirit because if the partisan spirit has a role of criticizing and evaluating the fales fact, it dosen't mean partiality any more. Through the analysis of the political neutrality of education, it can be concluded that the ingenuous aspects of neutrality are conditioned and controlled not by the power group but by the people demanding the democratization of education. This Educational neutrality from the people must has its own freedom.

"The Magic Barrel"의 사랑을 통한 자아 인식

최준석 全北大學校 語學硏究所 1983 어학 Vol.10 No.-

Malamud’s Jew is not a racial Jew. What he means by Jewishness is the capacity for suffering, and the will to accept moral obligation and responsibility for oneself and others. Thus his Jew is a man who longs to be better than he is by acquiring a new humanity throngh sufferings of failure, mistakes, and defeats. "The Magic Barrel" is a short story about the love and maturation of a young rabbinical student. To achieve his own love, first of all he should know his own self. Self-knowledge as the process of initiation is underscored all throughout the work. His pursuit after love and acceptance of it can also be related to the process of self-knowledge. Malamud delivers his messages poetically by the techniques of fantasy and allegory.

미국 문학에 나타난 흑인문제의 배경 연구

최준석 全北大學校 語學硏究所 1989 어학 Vol.16 No.-

As for the blacks, slavery was a sweeping category of their lives for more than two hundred years. Even after the legal promulgation of their emancipation, the situation did not alter greatly, because it made little difference in their status. As it was, the Reconstruction period and after was marked with the white’s reactionary practice. The black codes were more severely strengthened and segregation was thoroughly drawn. The blacks had to fight out against the repressive acts in all areas : political, economic, social, etc., and self-realization was prerequisite to them. Dr. William E.B. Du Bois was the representative of the times. He devoted his life to improving his fellow-creatures’degraded living. He was the best in his race and the most articulate in his theoretic insistence. The souls of Black Folk was the crystallization of his search for the state of his own race in body and mind. It had fourteen chapters, concerning the spiritual world of the Americans, what emancipation meant to them, and what was its after-math, the slow rise of personal leadership, two worlds within and without the veil, etc. It made everlasting and deep-rooted impression on the later generation. Harlem Renaissance was a cultural product of this self-realization.

제7차 교육과정과 천도교의 종교교육

송준석 韓國宗敎敎育學會 2001 宗敎敎育學硏究 Vol.13 No.-

본 논문의 목적은 제7차 교육과정에 근거하여 천도교의 종교교육에 대해 고찰한 것이다. 천도교의 경우 아직까지 종단에서 운영하는 학교가 존재하지 않고 그 이념으로 운영되는 동천고등학교가 유일하다. 고등학교용 종교교과서로 천도교교육자회가 펴낸 「천도교」가 유일하다. 그러나 그 내용은 제7차 교육과정에서 제시하고 있는 요건과는 거리가 멀다. 천도교는 종교과목의 내용에 폭넓고 균형 있는 종교지식, 인생의 문제를 극복하는 성숙한 신앙, 다른 종교에 대한 이해와 종교인으로서 바람직한 삶의 태도뿐만 아니라 민족종교로서 독특성과의 의의를 알려야 할 것이다. 천도교는 인간존중과 평등사상의 귀한 종교사상등을 각종 출판 문화교육사업 등을 통해 전파하고 알리는데 책임을 져야 할 것이다. 천도교는 정규학교를 갖고 있지 않기에 제7차 교육과정의 지침의도에 맞추어 청소년들을 위한 비정규적인 교육활동에 필요한 다양하고 쉬운 단기간의 연수교재를 개발할 필요가 잇다. 그리고 천도교는 다른 종교와 더불어 교과서를 개발하는 지혜를 모아야 할 것이다. The purpose of this paper is to investigate religious education in Chondogyo relying on the 7th Curriculum. In case of Chondogyo, The religious order doesn't have his own school but Dongcheon High School is the only school that is managed by the faith of Chondogyo 「Chondogyo」 is the only religious text for high school that was published by teacher committee of Chondogyo, but the contents of text is different from the necessary condition of the 7th Curriculum, and so Chondogyo must publish the text not only containting wide and balanced Knowledge of religion, matured faith to overcome the problem of life, comprehension of other religion and desirable attitude of life as a religious man but also informing students of originality and meaning of national religion. Chondogyo has responsibility for spreading the important religious thought, respect of man and egalitarianism, by means of publication, cultural and educational activity. Chondogyo needs to develop a various and easy short-term study book for informal educational activity of young boys and girls according to the guideline of the 7th curriculum because of not having formal school. Chondogyo gathers the wisdom to develop the textbook with other religious organism.

효율적인 엘리트체육 정책 방안에 관한 연구

이병익,오준석,김종필 龍仁大學校 1999 용인대학교 논문집 Vol.17 No.-

To lead to an effective elite sports policy, this study points out the current aspects and the problems involved in the elite sports policy, focusing on finance, pick-up and systematic train for excellent athletes, train for coaches, elite sports facilities, Welfare for athletes and support for elite sports organizations out of the elite physical categories. Taking such problem in account, the effective elite sports policy may have to be so put forward as to meet the following requirements. First, in order to promote elite sports, it shall be essential to support physical education finance of elite sports that are relatively poorly supported in a reasonable manner, considering appropriate investment factors, and come up with the right policy to secure the finance related to those sports. Secondly, it is necessary to establish the supporting system by steps for national athletes(teams), secure the future for outstanding athletes, systematically support physical education schools and vitalize sports for all clubs to collect more athletes. Thirdly, it shall be mandatory to provide more opportunities for training programs and form up the the support for coaches so that they each can socially manage a stable living. Fourthly, it is necessary to propose the solutions to have national athletes utilize public sports facilities to compensate the very limited physical facilities available for them and lead private enterprises to business for sports facilities to secure more physical facilities by designating them as sponsors for specific sports. Fifthly, to improve the athlete welfare business of the country, whose weights is unfairly given more to specific people of specific sports, it is mandatory to establish a variety of welfare business and systems for the majority. Finally, the alternative policies, Which promote abilities of sporting organizations and set the circumstance for them to become independent, may include promotions of juridical foundations for them, supports of establishing the circumstance for them to become independent. and efforts of leading them to self-operation.

본태성 고혈압환자의 순응도에 관한 연구 IV : 의사개입과 제도개선의 합동효과 Effect of Combined Strategies Provided by Physician and Insurance

유원상,김용균,김준희,최석구,전영빈 인제대학교 1991 仁濟醫學 Vol.12 No.1

본태성 고혈압환자의 순응도 제고를 위하여 채택한 방책중 의사의 단독개입만으로는 13%의 통원탈락율의 개선, 보험급여 제도의 일부개선만으로는 3%의 악화에 비하여 양자 합동으로는 17%의 개선효과를 보았다. 따라서 진료의사의 좀 더 적극적인 개입과 보험급여의 진료일수제한 철폐가 요망된다. One hundred patients with essential hypertension, consecutively and newly diagnosed, were followed up at hypertension clinic of Paik Hospital to evaluate their compliance for 12 months with combination strategies provided by physician's intervention and extended insurance coverage. Rate of drop-out from reserved visit to clinic were 23% at the end of 3 months, 52% at the end of 12 month, which showed decrease, compared with 26%, and 63% respectively of ordinary management. In conclusion, in order to improve patient's compliance, a positive intervention by physician as well as lifting of insurance limitation should be intensified drastically.

치료 불응성 Still's병에서 자가 조혈모세포 채집시 사용된 G-CSF에 의한 급성 악화 1예

이재웅,박성현,왕준광,오호석,최정혜,배상철,이영열,김인순,최일영,안명주 대한조혈모세포이식학회 2003 대한조혈모세포이식학회지 Vol.8 No.2

치료 불응성 자가면역질환에서 고용량 항암화학요법 및 자가 조혈모세포이식술이 시행되고 있으나 조혈모세포 가동화 및 이식술 시 사용되는 G-CSF에 의해 오히려 기존의 자가면역질환의 증세가 악화되었다는 보고가 있다. 저자들은 만성적으로 재발되는 Still's병 환자에서 조혈모세포 가동화를 위해 사용한 G-CSF에 의해 자가면역질환이 급성 악화된 1예를 경험하였기에 보고하는 바이다. High-dose immunosuppressive therapy with autologous stem cell transplantation is an increasingly used treatment for severe refractory autoimmune disorder including multiple sclerosis, rheumatoid arthritis, juvenile chronic arthritis, systemic lupus erythematosus. Although the optimal method of collecting stem cell is not determined, G-CSF-based mobilization is generally considered safe. However, worsening of disease status was reported in autoimmune disease undergoing mobilization with G-CSF. We report a 24-year-old male with refractory Still's disease who developed acute disease flare after administration of G-CSF for stem cell mobilization.

Sleeve 혈관문합술에 대한 조직학적연구

유재덕,이세일,오석준,심기영 大韓成形外科學會 1983 Archives of Plastic Surgery Vol.10 No.2

During the past decade, microsurgery has become clinical routine and resulted in many technical innovations. Inspite of this, microsurgery still entails certain disadvantages; it is time consuming, technically demanding and sometimes results in distressful failure. The sleeve microanastomosis, proximal vessel end is inserted into distal vessel using only two extraluminal sutures, is easier and less time consuming than conventional end to end anastomosis. However, there is a few reports about the histological study to support the beneficial technique of the anastomosis. An animal study was carried out by doing 25 sleeve anastomoses of carotid arteries of white stratin rats and subsequent histological observations in different time interval in order to clarify the modesty of repair in anastomosed vessels. The following are noted as results: Patency rate of the anastomosis was 84%. No aneurysm was found at any site of the anastomosis. The narrowing of lumen of the inserted proximal vessel, the formation of thrombosis & fibrin clot in foci at proximal vessel end, and the loss of intima at the site of anastomosis were noticed in 3 days following the anastomosis. Still narrowing of the lumen of inserted vessel, the formation of thrombosis & fibrin clot in foci at proximal vessel end were persisted with focal necrosis of the media at the stitch area of dista lvessel in one week following anastomosis. Disappearance of thrombosis & fibrin clot on proximal vessel end complete restoration of intimal continuity with slight atrophy of media on distal vessel were noted in 3 week following anastomosis. Neoitima formation at anastomosis site with moderate atrophy of media on distal vessel were noted in 5 week following anastomosis. Subintimal hyperplasia was not observed except in one case of medial necrosis due to wide adventitial stripping in 8 week following anastomosis.

분화된 갑상선암 환자에서 수술 후 재발과 원격전이를 예측하는 혈청 갑상선글로불린치

김경수,류진숙,홍석준,김원배,송영기 대한내분비학회 2003 Endocrinology and metabolism Vol.18 No.2

연구배경 분화된 갑상선암의 재발이나 원격전이를 시사하는 혈청 갑상선글로불린치는 보고자들마다 차이가 있고, receive operating characteristics (ROC) 곡선을 이용해서 cut-off value을 구한 경우는 별로 없다. 또한 수술 후 방사성요오드 치료 직전 (Tg-RAI), T₄투여 도중(Tg-on) 및 T₄ 중단 후(Tg-off)에 측정한 갑상선글로불린의 임상적 의의에 대해서도 아직 이견이 있다. 더구나 임상에서 측정된 혈청 갑상선글로불린치의 의미를 해석할 때 보다 큰 의미를 가지는 양성 예측치와 음성 예측치를 조사한 보고는 거의 없다. 방법: 갑상선 유두암 또는 여포암으로 진단되어 갑상선 전절제술 및 고용량 방사성요오드 치료를 시행 받은 후 갑상선 자리에 잔여병소 없이 추적관찰이 이루어지고 있는 242명의 환자들 중, 항갑상선글로불린항체가 음성인 205명의 환자를 대상으로 후향적으로조사하였다. 평균 추I:기간은 5년이었다. Tg-off는 저요오드식이를 2주 이상 시행한 후 ^(131)I-전신스캔과 함께 측정되었으며, 내인성 TSH의 농도가 30 μU/mL 이상으로 상승했을 때 의미 있는 것으로 판정하였다. 재발은 경부 림프절을 포함하여 경부에 새로운 병소가 생겼을 때로, 원격전이는 종격동 림프절을 포함하여 경부 이외의 장기에 병소가 생겼을 때로 정의하였곤, 재발이나 원격전이는 각종 영상학적 또는 병리학적 검사에서 이상소견이 발견되는 경우 있는 것으로 판단하였다. 민감도와 특이도가 가장 높은 Tg의 cut-off value를 구하기 위해 ROC 곡선을 이용하였고, cut-off value에 따른 양성 예측치와 음성 예측치를 구하기 위해 2×2표를 이용하였다. 결과: 재발은 50명 (24.4%)의 환자에서 발생하였고, 원격전이는 17명(8.3%)의 환자에서 발생하였다. 재발이나 원격전이 중 어느 한 가지라도 있는 환자는 52명(25.4%)이었다. ROC 곡선 아래부분의 면적을 통해 알아본 Tg-RAI, Tg-on, Tg-off 검사의 정확도는 서로 비슷하게 높았다. 재발에 대한 혈청 갑상선글로불린치의 cut-off value는 Tg-RAl가 11.8, Tg-on이 1.4,Tg-off가 3.3ng/mL였다. 이때의 민감도는 각각 85.4,82.2, 93.3%였고, 특이도는 각각 89.2, 92.4, 88.0%였으며, 양성 예측치는 각각 71.9, 77.1, 70.0%였고, 음성 예측치는 95.0, 94.4, 97.8%였다. 원격전이에 대한혈청 갑상선글로불린치의 cut-off value는 Tg-RAl가27.4, Tg-on이 2.5, Tg-off가 7.9 ng/mL였다. 이때의민감도는 각각 86.7, 87.5, 92.3%였고, 특이도는 각각86.2, 90.8, 80.2%였으며, 양성 예측치는 각각 34.2,46.7, 25.0%였고, 음성 예측치는 각각 98.7, 98.8,99.3% 였다. 결론: 혈청 갑상선글로불린치는 분화된 갑상선암의 재발이나 원격전이를 예측하는 데 있어 민감도와 특이도가 비교적 높은 검사이나, 음성 예측치가 높은 것에 비해 양성 예측치가 낮은 단점이 있었다. 또한 Tg-on은 Tg-off에 비해 양성 예측치는 높았으나, 음성 예측치는 낮게 나타났다. 따라서 Tg-on이 cut-off value보다 높게 측정되는 경우에는 반드시 전신스캔 등 재발이나 원격전이 여부에 대한 추가적인 검사를 시행하고, Tg-on이 cut-off value보다 낮게 측정되더라도 가능하면 선별검사로서 Tg-off나 recombinant human TSH 자극 후의 혈청 갑상선글로불린치를 주기적으로 측정해야 할 것으로 사료된다. Background: Reports on serum thyroglobulin(Tg) levels being used to predict recurrence or distant metastasis during the follow-up of patients with differentiated thyrod cancer(DTC) has been inconsistent. In addition, there have been few reports that attempt to define the cut-off value of Tg for recurrence or distant metastasis obtained by a receiver operating characteristic (ROC) curve. As well, there are differences in opinions on what the value should be on the first serum Tg level measured just before radioactive iodine(RAI) ablation(Tg-RAI), during thyroxine administration (Tg-on), and after thyroxine withdrawal (Tg-off) during the follow-up. Reports on the positive predictive values(PPVs) and negative predictive values(NPYs) of these Tg values are rare. Methods: A total of 205 patients (42 males, 163 females) with DTC were studied. All patients had undergone total or near-total thyroidectomy. After surgery and RAI ablation, annual thyroxine withdrawal 131I-whole body scan (WBS) with Tg measurements was performed. The mean duration of follow-up was 5.0 (1.4~7.4) years. The most sensitive and specific Tg values)cut-off values) for tumor recurrence and/or distant metastasis were selected by using ROC curves. We also calculated the PPVs and NPVs for rcurrence and/or distant metastasis using two-by-two tables. Results: Cut-off values of Tg-RAI, Tg-on, and Tg-off for recurrence were 11.8, 1.4, and 3.3 ng/mL, respectively. For these values, the sensitivities were 85.4, 82.2, and 93.3%, with the specificities at 89.2, 92.4, and 88.0%. PPVs were 71.9, 77.1, and 77.0% while NPVs were 95.0, 94,4, and 97.8%. The cut-off values for distant metastasis were 27.4, 2.5, and 7.9ng/mL, respectively. For these cut-off values, the sensitivities were 86.7, 87.5, and 92.3%, with the specificities being 86.2, 90.8, and 80.2%. PPVs were 34.2, 46.7, and 25.0% and NPVs were 98.7, 98.8, and 99.3%. Conclusion: All three serum Tg levels were sensitive and specific markers for recurrence and distant metastasis. Their PPVs were low in contrast to the high NPVs. In comparison with Tg-on, Tg-off showed higher sensitivity and NPV as well as lower specificity and PPV. Therefore, in the case of higher Tg-on during the follow-up period, efforts to find recurrence and distant metastasis,such as 131I-WBS, should be done. In addition, regular measurement of Tg-off or Tg after stimulation with recombinant human TSH is recommended as a screening test (J Kor SOC Endocrinol 18:153-165, 2003).