무기계 항균제(Ag-ZA)의 항균력에 관한 조사

조덕제,정숙현,박동근,신춘환 東西大學校 1996 동서논문집 Vol.2 No.1

Zeolite-Na에 Ag이온을 치환시켜 제조한 무기계 항균제를 이용하여 식품의 부패나 식중독을 초래할 수 있는 5종의 세균에 대한 항균력을 조사하였다. 이 들 5종에 대한 최소 저해 농도는 Escherichia coli는 0.1%이상, Pseudomonas aeruginosa는 0.01%, Klebsiella pneumoniae는 0.05%, Staphylococcus aureus와 Bacillus subtlis는 0.03%로 나타났다. 이 들 세균에 대한 0.1%의 Ag-ZA 첨가에서의 살균효과는 90%의 균 사멸시간으로 나타낼 때 Escherichia coli는 70분, Bacillus subtlis는 92분, Staphylococcus aureus는 111분, Klebsiella pneumoniae는 158분, Pseudomonas aeruginosa는 231분으로 나타났고, Ag-ZA 첨가량의 증가에 따른 사멸 속도의 변화는 Gram 음성균에서는 속도의 증가가 나타나지만 Gram 양성균에서는 속도의 변화를 관찰할 수 없었다. The investigation of antimicrobial activity on the Ag-ZA which is prepared by ion exchanging between Zeolite-Na and Ag ion. Minimum inhibitory concentrations are 0.01% for Escherichia coli and Pseudomonas aeruginosa, 0.05% for Klebsiella pneumoniae and 0.03% for Staphylococcus aureus and Bacillus subtlis. 90% sterilization time with 0.1% Ag-ZA are 70min., 92min., 111min., 158min., 231min. for Escherichia coli, Bacillus subtlis, Staphylococcus aureus, Klebsiella pneumoniae and Pseudomonas aeruginosa respectively. The sterilization effect is more important in gram neative bacteria than gram positive bacteria.

비공생 헤모글로빈 유전자 (RsHb gene)를 이용한 상추의 형질전환

조동욱,정규환 中央大學校 遺傳工學硏究所 2002 遺傳工學硏究論集 Vol.15 No.1

A non-symbiotic hemoglobin gene from radish (Raphanus sativus L. var. sarivus) was cloned into the plant binary vector, pBI121, harboring CaMV 35S promoter and a neomycine phosphotranferase Ⅱ (NPT Ⅱ) gene. Cotyledon segments of lettuce "Chung Chi Ma (Lactuca sativa L. cv. Chungchima)" were infected with Agrobacterium tumefaciens LBA4404 containing pBI121 harboring a non-symbiotic hemoglobin gene (RsHb hemoglobin gene). Kanamycin-resistant shoots were obtained on selection medium containing 25㎎/L kanamycin. Induced shoots were rooted in selection medium containing 50㎎/L kanamycin. Regenerated lettuce were cultivated and selfed, and seeds were harvested in the green house. Transformation of the non-symbiotic hemoglobin gene into lettuce was confirmed by polymerase chain reaction (PCR) analysis with genomic DNA. A PCR fragment of 680 bp was obtained from the transformed lettuce. Inheritance of the non-symbiotic hemoglobin gene in lettuce T1 progeny was conducted by PCR analysis. Segregation ratio for the non-symbiotic hemoglobin gene was detected by PCR analysis and observed in 1:1 ratio.

종합병원 응급실 내원환자 특성 조사

조동숙,최혜경,이환형 중앙의학사 1995 中央醫學 Vol.60 No.12

In order to enhance the efficiency of Emergency care ana to provide the basic knowledge necessary for EMT students, this study conducted a survey for 761 emergency care outpatients visiting at emergency medical center of the general hospital in pusan city. The distribution of the patients is as follows: There were more male visitors than female. The age distribution shows that over 60years old patient is 19.4%. An average of 28.8 people had visited for emergency care on Sundays and on average of 27 people had visited on saterdays. It was observed that more patients visited the hospital in the afternoon. Medical patients covers the most with 31%, surgery department covers 26.3%. 41.3% of the patients stay less than 3 hours at the hospital. The elder patients are stayed longer in the hospital. 49.8% at the patients were hospitalized and 48 % of the patients were returned home

구강암의 치료 후 생존율에 영향을 주는 인자에 대한 후향적 연구

조병호,민승기,오승환,이동근,김용각 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.3

The objective of this research is to find out the influencing factors to recur oral cancers. The outcomes of 85 patients(male: 62 patients, female: 23 patients) with oral cancer who were not treated any pre-operative radiotherapy, chemotherapy or previous oral surgery, other than routine dento-alveolar procedures and a recent diagnostic biopsy were analysed retrospectively. Actuarial (life tables) survival analysis showed the 5 year survival rate was 58%, 52% for male patients, 72% for female patients. The patients who were under 50 years old showed 71% of 5 year survival rate, 51% of 5 year survival rate were above 51 years old group. Patients who were treated with elective neck dissection showed better prognosis which were shown 73% of 5 year survival rate than not neck dissection which were reveal 45% of 5 year survival rate. In TNM stage of patients, advanced stage showed worse prognosis, but only N stage did not suggest to judge good prognosis. Most patients were treated under postoperative radiation therapy and showed better prognosis.

言論의 不法行爲에 대한 法的硏究

曺日煥,李東勳 東義大學校法學硏究所 1989 공공정책연구 Vol.5 No.-

水稻의 穗發芽性에 關한 硏究 (Ⅱ) 栽培時期 移動에 따른 穗發芽性

趙東三,孫錫龍,金鍾煥,尹太,朴成圭,權圭七 충북대학교 농업과학기술연구소 1988 農業科學硏究 Vol.6 No.1

This study was conducted in 1987 to investigate the viviparous germination in rice. Six varieties, i. e., Daeseongbyeo, Sangpungbyeo Hwaseongbyeo, Taebagbyeo, Chilseongbyeo and Samgangbyeo were used for this experiment. Seedlings were transplanted on May 25 and dune 5 and panicles were harvested 5 times with 5 days interval beginning 25 days after heading. Panicles were incubated at normal temperature right after harvest to observe the germination. Rate of viviparous germination of Japonica type was higher than that of Indica type. The early varieties such as Daeseongbyeo, showed high viviparous germination. Rate of viviparous germination of May 25 transplanting was higher than that of June 5 transplanting. Viviparous germination rate of Japonica type appeared to be increased as the harvesting was postponed. On the other hand, Indica type didn't show viviparous germinate. Based on this study the optimum harvesting time of tested varieties appeared to be between 40 to 45 days after heading.

特性不安의 下位領域과 洋弓記錄과의 關係

조성환,이용인,김동건 忠南大學校體育科學硏究所 1994 體育科學硏究誌 Vol.12 No.1

Through 26 female archery players attending middle or high school in a psychologic unsettled period, we examine the effects of color and music on archery record. Then we come to a conclusion below. 1. There is no record difference in the statistics according to the hight of anxiety( =0.01 ) but strictly speaking low anxiety group shows better record than high anxiety group 2. There is a meaningful result in record difference by music according to anxiety and group with low anxiety shows higher record than group with high anxiety.( p〈0.01 ) 3. When various color is served, low anxiety group shows better record than high anxiety group. And the record by color by color is higher like this order ; white〉blue〉red〉yellow〉black. There is a big record difference between red and blue targets.( p〈0,01 ) 4. When we observe the record difference according to existence and nonexistence of music, we can see that nonexistence of music produce better record than existence of that.( p〈0.01 ) And the record gets lower when various color is provided.

변단면 고층건물의 변동풍압특성

조지은,김동환,김종수,김영문 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

Nowadays the assessment of structural safety and serviceability of a tall building during strong wind is one of the important design criteria. The purpose of this study is to predict the pressure fluctuation of the tall building have different taper ratio of 5%, 10%, 15%. According to taper ratio, to know that the effect of vibration control on a tapered tall building attacked across wind. And also to give basic concepts of the tapered building on unpredictable wind directions. Acquired pressure data allowed analysis of the mean and r.m.s pressure coefficient, power spectral density function in measured taps at different levels and columns with considering the effects of wind directions and boundary layer conditions.

불량행위 청소년에 관한 사회 정신의학적 고찰 II

조동환,김정기,박영숙 메리놀병원 1997 메리놀病院論文集 Vol.7 No.-

사업장 소음 폭로에 의한 일과성 역치 상승과 회복

조수헌,하미나,한상환,주영수,성주헌,강종원,윤덕로,송동빈,이명학,김선태 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.2

To determine the recovery time from noise-induced temporary threshold shift(TTS), a prospective field study was conducted at three worksites where workers are known to be exposed high level of noise. Subjects were selected according to answers on a questionnaire which inquired about otological history and previous noise exposure, including avocational, military and occupational exposures. After excluding employee with past otologic problems, recent exposure to high level noise, and under medications, total 92 employees participated in the study. Among 92 participants, complete consecutive audiometric examinations were carried out at 0∼2 hours, 5∼7 hours, 14∼16 hours after worktime noise exposure on 26 participants wearing hearing protectors and 22 participants wearing no protective devices. The difference between the hearing level 0∼2 hours after noise exposure and 5∼7 hours is statistically significant by paired t-test(p<0.01). The median recovery times calculated from the data of 22 participants wearing no protective hearing devices are 15.6 hours at 4000Hz, and 7.7 hours, 10.3 hours, 8.4 hours at 1000Hz, 2000Hz and 8000Hz respectively. These data suggest that when measuring the pure tone audiometry for noise exposed workers, at least 16 hours noise-free interval is required.