과열증기처리 반탄화 추출물의 항산화 효과 검증에 관한 연구

오근혜(Geun Hye Oh),남정빈(Jeong Bin Nam),양승민(Seung Min Yang),정원희(Won Hee Joung),정진산(Jin San Jeong),신종민(Jong Min Shin),강석구(Seog Goo Kang) 한국펄프·종이공학회 2018 펄프.종이기술 Vol.50 No.2

The antioxidant properties of the extracts from torrefied wood subjected to superheated steam treatment were investigated. Total polyphenolics, total flavonoids, DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenging activity, reducing power, and FRAP (Ferric reducing antioxidant power) were determined to evaluate antioxidant activity. The total polyphenol content was 879.67±40.41 ㎎/mL at a concentration of 25 g/mL when the extract was subjected to a temperature of 300℃ for 10 min, and 759.67±25.17 ㎎/mL at a concentration of 25 g/mL at 350℃ for 10 min. The value of at 300℃ was 15.79% higher than that obtained at 350℃. Total flavonoid content was 111.18±3.55 ㎎/mL at a concentration of 25 g/mL at 300℃ for 10 min, and 80.58±2.58 ㎎/mL at a concentration of 25 g/mL at 350℃ for 10 min. The value at 300℃ was 37.97% higher than that obtained at 350℃. For the DPPH free radical scavenging activity, the highest scavenging activity was observed at a concentration of 6 g/mL. DPPH free radical scavenging activity at a concentration of 6 g/mL at 300℃ for 10 min was 89.83±0.03%, whereas at 350℃ for 10 min at the same concentration, it was found to be 87.99±0.1%. The value at 300℃ was 2.09% higher than that obtained at 350℃. Reducing power was determined to be 3.59±0.04 at a concentration of 25 g/mL at 300℃ for 10 min, and 2.92±0.1 at a concentration of 25 g/mL at 350℃ for 10 min. The value at 300℃ was 22.94% higher than that obtained at 350℃. FRAP was 1742±37 μM at a concentration of 25 g/mL at 300℃ for 10 min, and 1106±8 μM at a at 350℃ for 10 min. At 300℃, the FRAP value was 57.50% higher than that obtained at 350℃. Based on these results, we suggest that torrefied wood treated with superheated steam can be used in various applications because of its effective antioxidant properties.

국내 정형외과 의료소송 현황 파악

이원(Won Lee),이미진(Mi Jin Lee),김용민(Yong Min Kim),우찬명(Chan Myung Woo),김소윤(So Yoon Kim),김양수(Yang-Soo Kim) 대한정형외과학회 2016 대한정형외과학회지 Vol.51 No.3

목적: 국내 정형외과 관련 의료소송 판결문의 분석을 통하여 정형외과 의료소송의 현황과 원인이 된 과정을 파악하고자 함이다. 대상 및 방법: 소송시작이 2005년부터 2010년인 정형외과 의료소송 판결문 341건을 대상으로 하여 빈도분석을 실시하였다. 결과: 사건 발생 시점에서 소송 종결 시점까지의 평균 소요기간은 4.22년이었다. 의료소송의 원인이 된 과정은 수술이 46.3%였고, 수술의 종류는 척추 수술이 가장 많았다. 사고의 결과는 장애가 가장 많았고, 최종심 결과는 원고일부승이 40.5%, 원고패(기각)가 34.3%였다. 감염은 전체 중 26.1%에서 발생하였고, 손해배상 청구금액은 평균 181,998,036원이었으며 인용금액은 평균 58,897,161원이었다. 결론: 정형외과 의료소송으로 이어진 의료사고의 주요 원인 과정은 수술이 가장 많았고, 그 중에서도 척추 수술이 가장 많았다. 추후 의료사고의 근본 원인분석을 통해 의료사고를 줄이고 재발을 방지하기 위한 후속 연구가 이루어져야 할 것이다. Purpose: Through the analysis of orthopedics lawsuit rulings, the purpose of this study is to understand the current trends of medical lawsuits in orthopedics in Korea. Materials and Methods: An analysis of medical lawsuits in orthopedics was conducted. As the study method, a quantitative analysis was performed on 341 cases. Results: The average period of lawsuits, from the occurrence of the medical accident to end of the ruling, took an average of 4.22 years. The most frequent procedure that was the main cause of the medical accidents was surgery, at 46.3%. When surgery is the main procedure that caused the medical accidents, the result of examining the types of surgeries showed that spine surgery had the highest percentage. For the outcome of the accident, the highest number of cases resulted in disability and for the final court outcome, 40.5% ruled partially in favor of the plaintiff (the patient) with acknowledgement of only the damage incurred due to medical error of the total sum claimed, and dismissal of the claim made by the plaintiff (patient) accounted for 34.3%; 26.1% of cases develop infection. For the amount of claim for damage, the average amount of claim was 181,998,036 won; in the judgement amount, the average amount of judgement was 58,897,161 won. Conclusion: The most frequent procedure in orthopedics was surgery and spine surgery comprised a large proportion of these surgeries. Future studies to determine root causes of medical accidents should be conducted to reduce medical lawsuits and to plan against the repeating of medical accidents.

개의 췌도분리에서 췌장의 팽창과 콜라겐 분해요소

이상훈,김성주,박정환,김종성,오승훈,한진수,정인경,양태영,김동준,김광원,이문규,민용기,이명식,정재훈,함종렬 대한당뇨병학회 2000 Diabetes and Metabolism Journal Vol.24 No.2

Backgrounds: One of the main problems conditioning the outcome of islet transplantation is the ability to separate a sufficient number of viable islets with preserved function. Islet purification is critically affected by all of the isolation stages. Thus, it is necessary to set up the standard isolation method that islets are separate well from acinar without compromising islet yield and viability. Methods: Twenty three adult mongrel dogs were used for the experiment of total pancreatectomy with islet isolation. The islets were properly isolated by a modified Recordi method. The obtained islets were further purified by centrifugation on discontinuous gradients using cell separation system (Model 2991, Cobe, Lakewood Colo). We evaluated islet number (islet equivalent number, 150 um equivalents/kg of recipient body weight, IEq/kg), purity, cell volume, viabilty, recovery rate, and comparison of outcome according to the isolation conditions. Results: 1) The mean of islet numbers before purification were 13543±9431Eq/kg, digestion times were 13.8±2.6 min., digestion temperature was 37.4±0.2℃, purity was 59.7?.0%, viability was 90.0±2.1%, cell volume was 4.7±1.1 mL, islet number after purification were 4064±361 IEq/kg, and recovery rate was 29±2.9%. 2) Isolated islet numbers were different according to the degree of pancreas distension with collagenase, digestion temperature, and digestion time. 3) The best conditions for islet isolation were above 37.5℃ in temperature at recirculation of collagenase, within 12 min in digestion time and well distended pancreas with collagenase. 4) According to multiple regression adjusted by variable factors, the degree of pancreas distension with collagenase and digestion time were independently associated factors for successful islet isolation. Conclusions: In this study, we concluded that the degree of pancreas distension with collagenase and digestion time were independent factors for successful islet isolation and the best conditions for islet isolation were above 37.5℃ in temperature at recirculation of collagenase, within 12 min in digestion time and well distended pancreas with collagenase.

여름 캠프활동에 관한 연구 : 서울여대 부속유치원 여름 캠프활동을 중심으로

민행난;최윤선;최인경;민혜원;임양선;이윤희;이상희 서울여자대학교 1998 아동연구 Vol.3 No.-

[초록없음]

의류제품 구매에 있어서 유통채널갈등과 가격단서 지각

양원정;서민정;박재옥;이규혜 한양대학교 2006 韓國 生活 科學 硏究 Vol.26 No.2

Differentiated On Off line channel strategies are getting more attention due to conflicts between Off line channel and active E commerce. Choosing an appropriate channel strategy can prevent apparel products from clashing in market and manage each channel more efficiently. In fashion industry, product prices are flexible because of the short product life cycle and different distribution channels. It is essential to understand consumers’ apparel price cue perception when purchasing apparel in both On line and Off line. The objectives of this study was to examine the effects of apparel price cues on perceived savings and purchase intention in On line versus Off line retail channel. 303 quetionnaires from internet experienced women were used for the data analysis. Statistical analyses employed in this study were descriptive statistics, reliabilities conjoint analysis and regression. Overall, the perceived importance of apparel price cues were different between On line and Off line channels and each apparel price cue affected perceived savings and purchase intention differently according to distribution channels. Therefore, by considering characteristics of apparel price cue in On line versus Off line channels, differentiated channel strategies should be imposed to implement more effective marketing strategies.

中學 科學敎育의 探究學習에 대한 評價問項 開發 (Ⅱ)

閔庚德,楊洪準,李善行,鄭遠佑,이병교,金裕漢,羅長薰 경북대학교 과학교육연구소 1985 科學敎育硏究誌 Vol.9 No.-

This study was accomplished to develope the evaluation items for inquiry learning in the 2nd grade Middle School Science for the consecutive study of the evaluation items for inquiry learning in the 1st grade Middle School Science(U-Hang Ki et al, 1984). In this study, paper and pencil test items and performance test items are made by analyzing the abilities of inquiry according to the contents and four basic experiments from each unit in the 2nd grade Middle school science. These evaluation items were applied to tke five classes of the 2nd grade of middle school to test their validity. It is desirable that performance test schuld be used for the evaluation for the abilities of inquiry which can not be evaluated by paper and pencil test. In the evaluation methods of performance test, tester evaluation, peer evaluation and self-evaluation can be applied to the science class in a multi-student class. In higher grade, however tester evaluation is more desirable than peer and self evaluation. It is found that peer evaluation and self-evaluation make possible the perfect study by feedback.

주痛의 東西醫學的 考察

楊棟元,吳旼錫,宋泰元 대전대학교 한의학연구소 2002 한의학연구소 논문집 Vol.11 No.1

Objectives : Study Cause of Elbow pain. Methods : Literature Review on Elbow pain in view of oriental medicine and western medicine. Conclusions : In view of oriental medicine cause of elbow pain is yukum(六淫), Jangbu(臟腑), gunglak(經絡) and in western medicine, cause is inflammation, overworking, ankylosing, deformity, etc.

청신경종의 크기에 따른 어지러움의 양상 및 전정기능 검사의 특징

정원호,홍성화,조양선,김성민,장병찬,최재연,이승진 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.1

생약성분 항암제 Tianxian의 흡수동태에 관한 연구

양은정,김원배,심창구,이민화,정석재 서울대학교 1995 藥學論文集 Vol.20 No.-

음식점 비흡연 종업원의 간접흡연 노출량 지표로써 이산화질소 이용

양원호,고영림,한인규,이정민,정문식,정문호 대한위생학회 2000 대한환경위생공학회지 Vol.15 No.3

There, is increasing evidence suggesting that passive smoking increases the risk of lung cancer and other disease. though the potential health effects of exposure to environmental tobacco smoke (ETS) is a controversial subject. Since smoking in restaurant is prevalent in Korea. The concern on passive smoking exposure of non smoking service workers has been. requested. ETS exposure of non smoking service workers at restaurant was assessed because they have spent their times in restaurant indoors. The purpose of this study was feasibility of nitrogen dioxide(NO_(2))as exposure marker of ETS. The results of the study were as follows: 1. Average NO_(2), concentrations in indoor and outdoor at restaurants were 57.01ppb(±12.4) and 54.29ppb(±9.54), respectively. Comparing office-workers, service-workers at restaurants were exposured highly. 2. The personal NO_(2) measurement as exposure marker of ETS could cause The exposure error because NO_(2) can he generated by combustion appliances in indoor. 3. Service-workers spent their most time (86.6%) in indoor. Mean time spent at restaurant indoors and at home was 9.4 hours and 10.9 hours. respectively. 4. Personal NO_(2) levels correlated with indoor NO_(2) concentrations of restaurant (r=0.70) and of their home (r= 0.52) rather than of outdoor NO_(2) concentration of restaurant (r=0.35). The causes of personal NO_(2) exposure of non-smoking service-workers were considered as smoking of guests and combustion appliance indoors. 5. Personal NO_(2) exposures were estimated using Monte-Carlo simulation and time-weighted model. Estimated personal NO_(2) level was 47.2ppb (±8.3).