Taxol합성에 관한 연구. Ⅱ : 3-(2-Hydroxyethyl)-2, 2, 4-trimethyl-3-cyclohexenone SEM ether의 합성

임남수,신동수,정윤성,김정주,박두천,주우홍 昌原大學校 基礎科學硏究所 1995 基礎科學硏究所論文集 Vol.7 No.-

3-(2-Hydroxyethyl)-2,2,4-trimethyl-3-cyclohexenone SEM ether ??, an intermediate in the synthesis of taxol was provided in eight steps. The keto ketal ?? was obtained in three steps from 1,3-cyclohexanedione. Reaction of the potassium enolate of ?? with N-phenyltrifluoromethanesulfonimide provided triflate ?? in 84% yield. Thus palladium-mediated cross-coupling reaction of enol triflate ?? with vinyltributylstannane afforded diene ?? in a 89% yield. 3-(2-Hydroxyethyl)-2,2,4-trimethyl-3-Cyclohexenone SEM ether was prepared from diene ?? by sequential hydroboration [9-BBN, THF, 89%], deprotection[pTsOH ·H₂O, THF-H₂O,~100%], and silyation [SEMC], iPr₂NEt, nBu₄NI, CH₂Cl₂, 94%]

肥料의 品質管理 改善對策

임수길,남영락 高麗大學校自然資源科學硏究所 1993 自然資源科學硏究 Vol.1 No.-

補中益氣湯이 납中毒된 흰쥐의 臟器重量에 미치는 影響

임종필,남궁동,강창수,강태욱 又石大學校 1994 論文集 Vol.16 No.-

Lead acetate and Bojungiki-tang extract, a herbal restorative were treated p. o. 40㎎/㎏ and 500㎎/㎏ respectively and concurrently to mouse, and examined variation of body weigh, accumulation of lead in organs of rats. The results obtained in this study are as follows: 1. Bojungiki-tang extract(BIT) resulted increase of body weight and the increase ratio of body weight in lead-treated group was dropped but the group of concurrent administration with BIT showed significant recovery. 2. The accumulation of lead in liver of lead-treated group increased but the group of concurrent administration with BIT showed significant decrease. 3. The ratio of liver weight/body weight of lead-treated group increased but the group of concurrent administration with BIT showed significant decrease. These results on the whole indicated that concurrent administration with BIT sowed significant recovery from the toxicity of lead-treated group.

주5일 수업제에 따른 청소년 여가의식 조사 분석

남랑균,임수원 경북대학교사범대학부속 중등교육연구소 2005 중등교육연구 Vol.53 No.1

본 연구는 대도시, 중 · 소도시, 농 · 어촌 지역의 중 · 고등학교 남 · 여학생들을 대상으로 학생들의 여가의식을 분석함으로써 청소년들이 여가를 어떻게 활용하고 있는지 실태를 파악하고, 또 앞으로 전면적인 주5일 수업제 시행시 바람직한 청소년 여가문화의 정착을 위한 기초자료를 제공하고자 하는데 그 목적이 있다. 이러한 목적을 달성하기 위해 대구광역시와 경상북도에 위치한 중 · 고등학교에서 편의추출법으로 남 · 여 480명을 집락표집하여 설문지조사를 실시하였으며, 수집된 자료의 분석을 통해 도출된 결과는 다음과 같다. 첫째, 현재 학생들이 가장 많이 참여하고 있는 여가활동은 스포츠 부문과 관람 감상 부문이었다. 둘째, 여가활동 불만족 이유로 시간적 여유가 없다는 답변이 높게 나타났는데 이는 학생들이 대부분의 시간을 학교생활 학업 보충활동에 소비하고 있기 때문이라고 생각된다. 셋째, 주5일 수업제 하의 여가활동의 필요성에 대해서는 긍정적인 답변이 대체적으로 많았는데 이것은 주5일 수업제로 인해 여가 시간이 많아짐으로 여가활동을 할 수 있는 여유가 생길 것이라는 기대감에 기인 한 것으로 보인다. 넷째, 주5일 수업제에 따른 여가활동 참여 이유로 심신의 휴식과 스트레스 해소를 위함이라는 응답이 높게 나타났는데 이는 학교의 정규 과정과 학원 등에서의 학업으로 인하여 청소년들이 여가활동을 할 시간적 여유가 없다는 것에 기인 한다. 다섯째, 주5일 수업제 시행 시 여가활동 참여시간 투자 여부에 대해서는 긍정적인 답변이 대체적으로 많았는데 이를 통해서 학생들이 앞으로 심신의 휴식과 스트레스 해소, 자아발전을 위해 많은 시간을 여가활동에 투자할 것이라고 예상할 수 있다. The purpose of this study is to research the consciousness of adolescents in metropolises, small towns and rural districts to identify the actual conditions of their leisure participation and analyze their consciousness of leisure time for the upcoming Five-day-work-week School System. The data was acquired from total 480 middle and high school students in Daegu Metropolis and Kyungsangpook Province. Among them, 240 were boys and 240 were girls. They were selected by the convenience sampling method. For data analysis, frequency analysis and chi-square with SPSS Window 10.0 Version Program were used. From the analysis of the data, the following conclusions were obtained; It was found that the most popular two leisure activities were doing sports games and going to the movies. The answers to the need for leisure activities under the five-day-work-week system were mostly positive. Under that system, students can have more leisure time and it seems that their anticipation for the increasing leisure time results in positive attitudes toward leisure activities. Under that system, facilities for physical training and recreation are strongly needed so it is essential to establish infrastructure for education and social welfare and ask for support of other organizations that has leisure facilities. Finally, it is needed to improve leisure facilities and programs so as to execute the conclusions from the analysis and make the most use of the increasing leisure time according to the five-day-work-week.

식물신품종보호제도 도입과 OECD 종자보증규범 가입에 따른 우리나라 종자산업의 발전 방안

임수길,남영락 高麗大學校 自然資源科學硏究所 1998 自然資源科學硏究 Vol.6 No.-

복합레진의 중합 수축력과 수복물의 결합양상에 관한 연구 제 3 편 변연누출과 틈새

박남수,최대균,임호남,최부병,우이형 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.2

This study was designed to confirm the influence of the polymerization contraction stress to the marginal leakage and gaps of resin restorations. Ten kinds of experimental composite resins were prepared with varing the filler contents to display the different polymerization contraction stress. A cavity with enamel and dentin margins were prepared on the cervical area of human tooth. Enamel margins were etched with 37% phosphoric acid for 1 minute. Experimental composite resins were filled into the cavities and immersed in water bath of 37±1℃ for 24 hours, and then immersed into dye solution. Tooth were cut through the restoration, and the infiltration of dye was observed. Marginal gaps were measured on the light microscope with 100 magnifications. The following conclusions were drawn : 1. Polymerization contraction stress and gaps showed the corelation between them, gaps were decreased by increase of filler contents. 2. There was not exist the relationships between polymerization contraction stress and marginal leakage. 3. Marginal leakage and gaps were larger at dentinal margins than enamel margins.

응급실 내원 환자 14,836례의 통계적 고찰

조수형,조남수,임경준 大韓應急醫學會 1996 대한응급의학회지 Vol.7 No.1

Cases of 14,836 patients who visited the emergency room at the Chosun University Hospital from January 1 to December 31, 1994 were analyzed statistically according to sex, age, department, admission, discharge and used transportations. The results were as follows: 1) Considering sexual distribution, male patients were 52.3% and female patients were 47.7%. 2) According to age categories, 4th decade of life was most frequent. 3) According to the department distribution, internal medicine accounted for 22.7%, orthopedic surgery 15.4%, neurosurgery 12.4% and pediatrics 11.7%. 4) The rate of patients admitted via emergency room was 38.0% of total number of patients visited emergency room. The department distribution was as follows: internal medicine 24.1%, neurosurgery 13.7%, orthopedic surgery 12.1%, general surgery 10.5%. 5) 62.0% of patients visited emergency room were discharged. The department distribution was as follows: internal medicine 21.9%, orthopedic surgery 17.5%, pediatrics 13.3%. 6) The number of DOA patients was 212(14.3%) and it showed highest rate in December. 7) A car and taxi were the most frequently used transportation(70%) but the used rate of hospital, 119 and 129 ambulance tended to increase. 8) Emergency room was visited most frequently from 20 to 24 hours. 9) Consumed time from arrival to emergency care of the relevant department was within one hour(67%).

복합레진의 중합 수축력과 수복물의 결합양상에 관한 연구 제 2 편 결합강도

박남수,우이형,최부병,임호남,최대균 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.2

Failure of bond between resinous restorative materials and tooth can be occured by the polymerization contraction forces larger than bond strengths. This study was planned to confirmed that the bond strengths between composite resin and acid etched enamel will be influenced by the polymerization contraction forces altered with filler contents and diameter of attached resin specimens. Ten kinds of experimental composite resins were prepared and bonded to bovine tooth enamel which were acid-etched. The diameter of resin specimens attached were 4 mm and 6 mm. The following conclusions were drawn : 1. Shear bond strengths were increased and then decreased with rise of filler contents, maximum shear bond strength was obtained by the 40% filled composite resin. 2. Unit shear bond strengths of resin specimens bonded with large area were lower than that of narrow area bonding. It was concluded that shear bond strengths to acid etched enamel can be influenced by the polymerization contraction forces.

복합레진의 중합 수축력과 수복물의 결합양상에 관한 연구 제 1 편 : 중합수축력

박남수,최대균,임호남,최부병,우이형 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.1

The polymerization contraction forces has a relationship with the contents of filler, and if forces surpass the bond strength between restoration and bonded surface, the failure of bond can be occured. This study was designed to evaluate the effects of filler contents on the polymerization contraction forces and to confirm whether the polymerization forces could induce the bond failure of composite resins to enamel or dentin. Low capacity load cell using strain gauge were prepared and used as a measurement system for polymerization contraction forces. Oxidized alloy surfaces, enamel surfaces and dentin surfaces were used as bonded surface. Measurements of the polymerization contraction forces were done for 1 hour, and a stress at 1 hour after was recorded as a polymerization contraction force. It was considered as a bond failure that the polymerization contraction forces increased and then decreased by the time. The following conclusions were drawn : 1. Polymerization contraction forces of composite resins were decreased by the increase of filler contents. 2. Polymerization contraction forces were increased at thickened resin specimens, but it was not significant at over two millimeter thickness. 3. Bond strength of composite resins to the acid etched enamel surfaces exceeded the polymerization contraction forces and the reduced polymerization contraction forces due to the bond failure were not confirmed. 4. Failure of bond and reduced polymerization contraction forces occured on dentin.

중심 정맥 도관 348례의 임상적 고찰

조남수,김용배,임경준 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

To evaluate clinical trends, central venous catheterization of 348 in total performed at the Chosun University Hospital from January 1993 through December 1994 were analyzed clinically & statistically according to sex, age, department, used veins and complications. The results are as follows : 1) Considering sexual distribution, male patients were 61.2% and female patients were 38.8%. 2) According to age categories, fourth decade of life was most frequent. 3) According to departmental distribution, general surgery was 38.5%, chest surgery was 21.0% and orthopedic surgery was 12.9%. 4) Subclavian vein used most frequently (74.1%), and femoral vein accounted for 14.9%, extermal jugular vein 7.5% internal jugular vein 3.4%. 5) Complications associated with subclavian vein catheterization using infraclavicular approach occupied 15.1%(39 cases) of total subclavian vein catheterization(258 cases), and among these complications pneumothorax occupied 43.6%, subcutaneous hematoma 28.2%, local infection 15.4%.