한국인 폐확산능 정상예측식의 임상적 유용성과 정확성

나승원 ( Seung Won Ra ),박태선 ( Tai Sun Park ),홍윤기 ( Yoon Ki Hong ),홍상범 ( Sang Bum Hong ),심태선 ( Tae Sun Shim ),임채만 ( Chae Man Lim ),이상도 ( Sang Do Lee ),고윤석 ( Youn Suck Koh ),김우성 ( Woo Sung Kim ),김동순 ( Dong 대한결핵 및 호흡기학회 2008 Tuberculosis and Respiratory Diseases Vol.64 No.2

연구배경: 폐확산능을 해석하는 데 필요한 정상예측식으로는 한국인을 대상으로 하여 박 등이 개발한 식(박 식)이 있으나 아직 외국 정상예측식을 많이 사용하고 있다. 이에 국내에서 많이 사용하는 외국 정상예측식인 Burrows 식과 박 식의 임상적 유용성과 정확성을 비교하고자 하였다. 방법: 1. 임상적 유용성 연구; 2006년 7월부터 12월까지 6개월간 폐확산능검사를 시행한 환자 중 두 식을 각각 정상예측식으로 적용하였을 때 폐확산능 해석이 다른 276명(대상군 A)을 대상으로 하였다. 대상군 A에게 두 식을 각각 적용하였을 때 폐확산능 해석과 임상적 판단과의 일치도를 비교하여 임상적 유용성을 평가하였다. 2. 간질성폐질환 진단의 정확성 비교; 2001년부터 2006년까지 폐조직검사를 시행하여 확진된 간질성폐질환군과 서울아산병원에서 모집한 정상군을 대상으로 하여 정상예측식으로 두 식을 각각 적용하였을 때 폐확산능 해석의 정확도를 비교하였고, 두 식이 차이가 나는지 맥니머의 카이스퀘어 검정을 하였다. 결과: 1. 임상적 판단과의 일치도 비교; 276명을 임상정보를 토대로 폐확산능을 예측하여 분류한 결과 정상 54명, 감소 220명, 불분명이 2명이었다. 예측식으로 박 식과 Burrows 식을 적용하였을 때 임상적 판단과 일치하는 환자는 각각 78%와 22%이었다(p<0.001). 2. 간질성폐질환 진단의 정확성 비교; 박 식은 민감도 90.1%, 특이도 100%이었고 Burrows 식은 민감도 64.2%, 특이도 100%로 민감도가 통계학적으로 유의하게 박 식이 높았다(p<0.001). 결론: 우리나라 정상예측식인 박 식이 외국 정상예측식인 Burrows 식을 정상예측식으로 적용하는 것보다 임상적 유용성이나 간질성폐질환 진단의 민감도에서 더 우월하였다. 향후 폐확산능검사의 정상예측식으로 박 식을 사용해야 할 것으로 사료된다. Background: Park et al. developed the Korean reference equation for the measurement of diffusing capacity in 1985. However, the equation has not been widely used in Korea and foreign reference equations have been popularly used. We intended to compare the clinical usefulness and the accuracy of the the Korean reference equation (Park`s equation) with that of the foreign equation (Burrows` equation) that is commonly used in Korea. Methods: 1. Evaluation of clinical usefulness; Among 1,584 patients who underwent diffusing capacity (DLCO) at the Asan Medical Center from July to December 2006, group A subjects included 276 patients who had different interpretations of DLCO in trials employing Burrows` equation and Park`s equation. Clinical assessment was decided by consensus of two respiratory physicians. In order to evaluate the clinical usefulness of Burrows` equation and Park`s equation, agreement of clinical assessment and DLCO interpretation were measured. 2. Evaluation of accuracy; Group B subjects were 81 patients with interstitial lung disease (ILD) and 39 normal subjects. The 81 ILD patients were diagnosed following a surgical lung biopsy. The accuracy of diagnosing ILD as well as sensitivity and specificity were evaluated according to the use of the reference equations (Burrows` equation and Park`s equation) for DLCO. Results: Agreement between clinical assessment and interpretation of DLCO was 22% for the use of Burrows` equation and 78% for the use of Park`s equation. The sensitivity and specificity of the Burrows` equation for diagnosing ILD were 64.2% and 100%. The sensitivity and specificity of the Park`s equation for diagnosing ILD were 90.1% and 100%. The sensitivity of the Park`s equation for diagnosing ILD was significantly higher than that of Burrows` equation (p<0.001). Conclusion: The Korean reference equation (Park`s equation) was more clinically useful and had higher sensitivity for diagnosing ILD than the foreign reference equation (Burrows` equation). (Tuberc Respir Dis 2008;64:80-86)

한반도 서남부 지역에 서식하는 섬휘파람새(Cettia diphone cantans) 번식기 울음소리 연구

김성진(Sung-Jin Kim),박종길(Jong-Gil Park),홍길표(Gil-Pyo Hong),채희영(Hee-Young Chae) 한국조류학회II 2008 한국조류학회지 Vol.15 No.2

포획조사를 실시하여 동정된 개체를 대상으로 섬휘파람새(Cettia diphone cantans)의 번식기 울음소리를 녹음하였으며 다도해(홍도), 월출산(춘양리, 도갑사, 금릉경포대)으로부터 총 8개체 240 song을 녹음 분석하였다. 조사지역별 번식기 울음소리의 동질성 검사를 통해 통일 집단 여부 분석결과 다도해(홍도 n=3; 72 song)와 월출산(춘양리 n=3; 80 song, 도갑사 n=1; 68 song, 금릉경포대 n=1; 20 song)에서 모든 조사지역의 개체들이 동일 집단을 형성하지 않는 것으로 나타났으며, 동일 장소에서 녹음한 다도해 홍도 3 개체와 월출산 춘양리 3 개체만이 각각 동일 집단을 형성하였다. 번식기 울음소리의 유형은 다도해(홍도) 5 개, 월출산(춘양리) 5 개, 월출산(도갑사) 4 개, 월출산(금릉경포대) 4 개로 나타났다. 홍도와 춘양리 두 집단의 각각의 상관분석 결과 NNWP와 NNSP, COM이 강한 음의 상관관계(홍도 R=-0.97, 춘양리 R=-0.95)를 나타내었으며, NNSP와 COM이 일치하는 것(두 집단 모두 R=1.00)으로 나타나 본 연구에서 녹음한 섬휘파람새 번식기 울음소리의 경향을 알 수 있었다. 본 연구에서 녹음한 섬휘파람새 전체의 번식기 울음소리는 일관되게 A, B 유형의 두 가지로 분류할 수 있었다. 번식기 울음소리의 두 가지 유형을 T 검정 결과 NNWP, MIWP, DWP, NNSP, MASP, DSP, COM 요인에서 차이가 나타났다(P<0.01). 번식기 울음소리 유형의 조사지역별 및 각 집단 간의 차이는 동종 개체군간의 경쟁 및 번식 전략의 선택과 같은 생태학적 요인과 관련이 있는 것으로 판단되며, 번식기 울음소리 발달상의 변이에 의해 개체별 변이가 나타나는 것으로 판단된다. Communicative interaction are the essence of all animal societies, so it is appropriate to examine communication as a way to gain insight into social structure and thereby generate hypotheses about genetic structure. It is worth pointing out a suggestive pattern in the class Aves, with respect to the approach to genetic population structure by study of vocal communication. Last study of Japanese Bush Warbler Cettia diphone overlooked for distribution and song structure between subspecies. This study is Japanese Bush Warbler Cettia diphone cantans distribution and song structure of the population in South-West Korea. Population distribution researched by banding. Identified Japanese Bush Warbler Cettia diphone cantans record total 8 individuals 240 songs in Hong island, Dadohae National Park and Chunyang-ri; Dogap temple; Kumneung Kyungpo post, Wolchulsan National Park. song homogenity (MANOVA) analyzed each study area. Only the individual which records from identical place formed identical group. Each study site has 5 song types in Hong island and Chunyang-ri, 4 song types in Dogap temple and Kumneung Kyungpo post. But analyzed of all Japanese Bush Warbler Cettia diphone cantans song divided A or B type with parameters (NNWP, NNSP, and COM). Paired t-test against A or B type of song differed from most parameter significant (P<0.01). We analyzed correlation between Hong Is. and Cunyang-ri in sample size, each region was related to negative correlation (Hong Is.: R=-97, Chunyang-ri: R=-95; P<0.01). Moreover, we analyzed NNSP and COM which are accord with correlation (R=1.00). Difference of each study site of song type are thought to intra-species male-male competition and selection of breeding strategy. In addition, repertoire size difference in each site are thought to received the effect of the variation of song development and cultural mutation. Variable variation, that even only affected to song type and repertoire size, and so Japanese Bush Warbler Cettia diphone cantans song study have to much investigation.

ASEA-SKF 래들용 고알루미나 내화재의 용손성향

박홍채,이윤복,양태영,장윤식,오기동 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.53 No.-

ASEA-SKF 래들에 사용된 고알루미나 내화물의 광물 및 화학적 변화를 화학분석, 현미결관찰, X-선회절분석으로 조사하였다. 미사용 벽돌의 주요 광물상은 α-Al₂O₃, mullite, tridymite이었다. 가동면에서 SiO₂결정상이 소실되었으며 mullite와 α-Al₂O₃가 다소 감소하였고 2FeO·SiO₂와 hercynite, FeO, Cr₂O₃상이 생성되었다. 침식율은 강종에 따라 다소간 차이가 있었으며 용강 SF-45와 60분간 반응시켰을때 SK36벽돌의 침식율은 75.9%인 반면에 SK38벽돌의 침식율은 20.47%이었다. 대부분의 용손벽돌에서 가동면으로부터 내부로 감에 따라 열적 및 화학적 스폴링으로 인하여 미세균열이 존재하였다. Mineral and chemical changes of alumina refractories used in ASEA-SKF ladle were examined by chemical analysis, microscopy and X-ray diffraction method. Main minerals in unused high alumina runner bricks were α-Al₂O₃, mullite and tridymite. In working face of high alumina runner bricks, SiO₂phase was not observed, mullite and α-Al₂O₃phases more or less decreased. On the other hand, 2FeO·SiO₂, hercynite, FeO and Cr₂O₃phases were formed. Th corrosion of high alumina runner bricks showed different behavior by using various types of iron melts. Expecially, corrosivites of SK36 bricks and SK38 bricks, which immersed in SF-45 Iron melts for 60min, were 75.9% and 20.47%, respectively. Microcracks in high alumina runner bricks increased from the working face to the inside due to thermal and chemical spalling.

규칙적인 운동이 여성의 근력에 미치는 영향

박홍석,송채훈 朝鮮大學校 스포츠科學硏究所 2003 스포츠科學硏究 Vol.14 No.-

The purpose of this study was the regular exercise on investigate the characteristics of health related muscular strength in Women. The study were resulted as the following : Middle and high aged woman's health related fitness were gradually decrease by aging. And regular exercise group was fitness decrease slow compare to control group.

學校相談의 發展動向과 展望

朴鎭玹,宋在鴻 全北大學校 學生生活硏究所 1989 學生生活硏究 Vol.17 No.-

This review was attempted to look into the future of counseling in the school settings. For this purpose, we examined the criticism against school counseling activities, the current trends within the counseling professions, and the prospects of school counseling in the changing society. This review have a look into the future of counseling activities in the school settings as follows: First, it is necessary to redefine and clarify the role of counselor in the school settings. Second, it is necessary to disperse the counseling services ; teachers and other teaching staffs should play a role in counseling activities, while counselors should take part in instruction activities with a course of mental hygiene. Third, school counselor should make a effort to increase the communication with significant others such as parents, teachers, school administers, and community supporters. Fourth, school counselor should take much interest in group activities ; instead, clients with personal problem must be committed to specialists such as clinical psychologists, psychotherapists, and psychiatrists. Fifth, school counselor should make a effort to improve their self-knowledge : They should be able to understand themselves as a person and grasp their working surroundings Sixth, school counselor should continue to play a role of researcher ; this would contribute to improving their self-understandings and developing their professions. Finally, school counselors should function as agents of institutional change : They should have a favorable influence upon the change of institute, such that they should not only lead their students to adjust to their social surroundings but also contribute them to meet their needs.

1981~1985 學年度 全北大學校 新入生理解資料 分析 比較硏究

朴敬玉,金根坤,宋在鴻 全北大學校 學生生活硏究所 1986 學生生活硏究 Vol.14 No.-

大邱地域住民의 生活體育 實態分析 : 早起運動參與度를 中心으로 Focusing on participation degree of populations exercising in the morning

蔡鴻遠,金柄斗,李敏炯,金基學,朴宇奎 慶北大學校 體育科學硏究所 1991 체육과학연구지 Vol.7 No.-

The purpose of this study is to get the source materials to activate mass sports of regional populations. At first, it was by sex, age, and occupations examined and analysed populations that would participate in physical activities from 5 to 8 Am at 28 pate-up mountains and 477 workplaces, schools, public facilities, and commercial facilities sontrolled by 7 district offices in Daegu. The mothod of investigation made a preliminary inquiry in advance and set in place 70 investigators in entrance of path-up mountains and sports facilities. Especially, the occupational classification was adopted from socilolgical job calssification model and every result value of analysis was dealed and compared with percentage by means of Daewoo Corona 286 PC. Accordiangly, the concrete conclusions are summarized as follows : 1) The total number of persons participating in mass sports in the morning is 18,045(men 10,850 : 59%, women 7,465 : 41%), and it is about 1% level by the rate of population and low participation rate in comparison with advanced nations. ① It is showed that the participation value in proportion to sex is 17.4% more in men's case taking 10,587 persons(58.7%) than 7,458 persons(41.3%) in women's case. ② Taking the dimensions of participation degree in proportion to age, it is taken the most value in fifties age with 5,092 persons (28%), showing in sixties, forties, thirties, twenties age in sequence. ③ Taking the dimensions of participation degree in proportion to occupation, it is taken the most value in housewife with 5,569 persons (31%), showing the unemployed, independent enterprise, technical expert, clerical work, deministrative position, student, technical work, manual labor, agriculture and forestry, and fishery in sequence. 2) Judging from the participation degree in proportion to district office, it is taken the most value in Mam-gu with 3,821 persons(21.2%) and Dalseo-gu with 3,776 persons(20.9%) and the least in Joong-gu with 1,612 persons(8.9) and Seo-gu with 1,589 persons(8.8%). It is assumed that low participation value in Joong-gu and Seo-gu should result from deficient facilities and close space of urban.

實生活 問題解決에 關한 自己評價尺度의 開發

朴鎭玹,羅東晉,宋在鴻 全北大學校 學生生活硏究所 1987 學生生活硏究 Vol.15 No.-

Only a few studies have explicitly attended to the personal problem-solving process within the counseling literature, perhaps due in part to the dearth of relevant assessment instruments. An individual's self-appraisal of his or her problem-solving ability will affect his or her problem-solving performance. This study examines the dimensions underlying the applied problem-solving process and describes the development of a Real-life Problem Solving Instrument (RPSI) based on factor-analysis results. In addition, the study delineates initial reliability and validity estimates of the instrument. Data were collected from three samples of students (ns=123, 33, and 22). The factor analysis revealed three distinct constructs : approach vs. avoidance style, problem-solving confidence and will, and compulsiveness vs. self-control style. Although previous research has focused on stages within problem solving, these results suggest the existence of underlying dimensions across stages within people's perceptions of their real-life, personal problem solving. Reliability estimates of the 32 items revealed that the constructs were internally consistent and stable over time. Initial estimates of validity suggest that the instrument is measuring constructs that are (1) related to general perceptions of problem-solving skills, except for satisfaction with the present problem-solving ability, (2) related in part to intelligence, most notably verbal ability, (3) unrelated to social desirability, (4) related to personality variables, most notably locus of control, and (5) amenable to change through specific skill training in problem solving. The investigation has implications for future research on the personal problem-solving process and provides a research instrument that is easily administered and scored.

일란성 쌍태아의 치루 : A Congenital Etiology 증례보고 및 원인적 고찰

박웅채,백홍규 건국대학교 의과학연구소 1993 건국의과학학술지 Vol.3 No.-

Fistula in Ano in the infant and children has certain characteristics that seem to seperate them from their adult counterpart. These are a preponderance in the first year of life, almost exclusive male predominance, simple superficial character and straight course of the tracts. These different findings lead to the need for etiological explanation. We had an experience of anal fistula in a pair of monozygotic twin who shows unique findings. Base on these findings, we presume that some environmental effect in utero causes the formation of the abnormal glands which are vulnerable for gross infection after birth, and these abnormal anal glands are inclined to distribute in the anterolateral portion of anal canal. These findings support the congenital etiology of fistula in ano in the infants.

Y Nd Ba₂Cu₃O 고온 초전도체의 구조와 적외선 투과율에 관한 연구

박기홍,김재욱,김의훈,김채옥 漢陽大學校 基礎科學硏究所 1992 基礎科學論文集 Vol.11 No.-

Y??NdxBa₂Cu₃O?? 고온초전도체의 X-선 회절 분석 과 적외선 투과율 측정은 실온에서 수행되었다. 또한 수송임계 전류밀도는 77K에서 측정되었고, 저항은 80~140K 범위의 온도에서 조사되었으며, 시료들은 고상 반응법에 의해서 제조되었다. 한편 x의 양이 변함에 따라서 전이온도 Tc는 88K 근처의 값을 가지며, 거의 x의 양에 따라 변하지 않았다. 적외선 투과율 측정에서 날카로운 peak들은 472.23~618.87㎝?범위에 있었다. 이것은 특이할 정도로의 low-lying plasmalike edge와 낮은 에너지의 전자적인 여기가 존재함을 나타내는 것이다. 수송임계 전류밀도는 22~92 A/㎠ 범위에 있었다. X-ray pellet diffraction and IR transmittance measurements were been carried out at room temperature. Also the transport critical current density and resistivity of high Tc superconducting Y??NdxBa₂Cu₃O?? system were determined at 77K and in the range of 80~140 K. The sample were prepared by solid state recation. As x varied, the superconducting transition temperature Tc near 88K did not depend on x. In the infrared transmittance measurements, several sharp peaks were observed in the range of 472.33~618.87㎝-1. This indicates that unusual low-lying plasmalike edge and low energy electronic excitation exist. The transport critical current densities determined ranged from 22 to 92A/㎠.