Tris(malonato)Cobltate(Ⅲ) anion이 산성용액에서 水化反應速度에 대한 溫度와 壓力의 影響

李相協,廉祥徹,林鍾完 慶北大學校 物理化學硏究所 1985 硏究論文集 Vol.6 No.-

The Kinetics of tris (malonato) Cobaltate(Ⅲ) anion in aquation reaction was carried by spectrophotometric method. Themperature range was 20˚ to 30℃ and pressure was varied up to 1500 bars. The rate constants were increased with increasing temperature, but were decreased with increasing pressure. Activation volume, energy, other activation parameters were reported.

감마선조사 생쥐의 폐 및 심장조직중의 Superoxide Dimutase 활성도에 대한 연구

이상협,전현우,김우제,양종대,차종희 朝鮮大學校 附設 醫學硏究所 1986 The Medical Journal of Chosun University Vol.11 No.1

The change of cytosolic superoxide dismutase (E.C.1.15.1.1. ) activities in the lung and heart of mice irradiated with a single dose of gamma irradiation 400 rads for the whole body was examined. The specific activities of superoxide dismutase in cytosol fraction of lung and heart were decreased to lowest levels on 7 day after irradiation and the activities of superoxide dismutase per gram of the organ tissues were decreased to lowest level on 21 day after irradiation. Also the total activities of superoxide dismutase per lung and heart were decreased to lowest level on 7 day after irradiation, It is concluded that the superoxide dismutase activity in cytosol of heart is more decreased than the activity in cytosol of lung after irradiation.

Tris(malonato) Cobltate(Ⅲ) anion이 산성용액에서 水化反應速度에 대한 溫度와 壓力의 影響

李相協,廉祥徹,林鍾完 慶北大學校 1984 論文集 Vol.38 No.-

The Kinetics of tris (malonato) Cobaltate (Ⅲ) anion in aquation reaction was carried by spectrophotometric method. Themperature range was 20°to 30℃ and pressure was varied up to 1500 bars. The rate constants were increased with increasing temperature, but were decreased.. with increasing pressure. Activation volume, energy, other activation parameters were reported.

의료환경 변화에 대비한 의학기술부문의 교육방향

최종학,윤범철,조경진,이준협,임국환,고성진,최경호 高麗大學校 倂設 保健大學 保健科學硏究所 2003 保健科學論集 Vol.29 No.1

Under the pressure to open the service market as proposed by World Trade Organization, we can easily expect our educational systems for allied health professions will experience a lot of changes in near future. Accordingly, we compared our current educational systems for allied health professions with the foreign ones and mapped out some strategies predicting the forthcoming enormous changes. Major investigations and analysis are summed up as follows, The educational programs for allied health professions which was started in 1963 in Korea are stilled remained as 2 to 3 school years, while the systems in advanced countries have already been changed or been changing from 2 year to 4 year college levels. We can hardly find the uniform educational system or school years for the allied health professions in the world except for Korea. Fortunately, university level four-year programs for the profession was established in 1979 in Won-joo for the first time in Korea. However, there are still only few four-year programs in this country. To meet the rapidly changing needs we have faced in the health areas we should supply appropriate health personnel through various efforts. Now we would like to suggest followings, <Educational goals for the allied health professions> 1) reconfirming characteristics for the educational goals of health professions 2) extending school years for the allied health professions 3) strengthening clinical training and internship 4) expanding opportunities for the continuing education through lifelong education 5) upgrading from old-fashioned technologies to advanced technologies 6) cultivating competencies of health professionals for the global competition <Suggestions for the Development of Allied Health Professions> 1) reforming the school years of educational programs for the allied health professions to meet the global standards 2) expanding the role of junior college programs for the allied health professions through the development of intensive courses in the professions. 3) diversifying and specializing the allied health professions mainly through 4 year B.S. degree programs.

아파트 외관디자인의 다양화를 위한 경제적 특성에 관한 연구(Ⅱ)

배준현,이종협 동양대학교 산업기술연구소 2000 東洋大學校 産業技術硏究所 論文集 Vol.2 No.1

Concerning environmental design, mass produced apartment does not express identity, that plays an significant role in community, and the exterior design of an apartment housing is important since the housing design affectsthe residents'life. In recent, there is an effort to creak diversification in apartment housing design following competition winning projects. To produce diverse apartment housing appearance, "combination among different dwelling unit vertical combination" by protrusion and subsidence of units should be studied and there should be more researches regarding economics and construction of apartment housing.

trans-Fluoroaquobis (ethylendiamine) Chromate(III) Cation 수화반응 속도에 대한 온도와 압력의 영향

吳相牛,李相協,林鍾完 慶北大學校 物理化學硏究所 1986 硏究論文集 Vol.7 No.-

착물 trans-〔Cr(en)_2F(H_2O)〕^2+의 hydrolysis에 대한 속도상수를 분광광도법으로 여러가지 온도와 압력에서 측정하였다. 온도 범위는 30℃에서 50℃까지이고 압력은 1 bar에서 1500bar까지 변화시켰다. 1bar, 30℃에서 측정된 속도상수는 2.632×10 exp(-5)sec^-1였다. 속도상수는 일정온도에서 압력이 증가함에 따라 감소하였다. 활성화 부피와 다른 활성화 파라미터들은 이러한 속도상수로 부터 계산되었다. 활성화 부피는 모두 양의값을 가졌으며 0.477에서 3.152㎤/mol내에 있고, 활성화 엔트로피는 작은 값을 가진다. 이 반응은 흡열반응이고, 실험적인 온도에서 엔탈피 지배반응이다. The rates of hydrolysis of the complex, trans-〔Cr(en)_2F(H_2O)〕2^-1, have been investigated using spectrophotometric method at various temperatures and pressure. Temperature was 30℃ to 50℃ and pressure was varied up to 1500bar. The rate constant measured at 30℃ is 2.632×10 exp(-5)sec^-1. The rate constants are decrease with increasing pressure at constants temperature. Activation volume and other activation parameters are calculated from these rate constants. The activation volumes are all positive and lie in the limited range 0.447∼3.152㎤/mol and the activation entropies are small values. From the results, it was found that this reaction was endothermic and enthalpy controlled reaction in the experimental temperature.

시차펄스 양극벗김전압전류법(DPASV)에서 검량선 비교법에 의한 바닷물중 미량 금속의 신속정량

채명준,이종협 漢陽大學校 環境科學硏究所 1985 環境科學論文集 Vol.6 No.-

바닷물에 함유되어 있는 미량금속(Zn,Cd,Pb,Cu)을 시찰펄스 양극벗김전압전류법(DPASV)으로 신속히 정량하기 위하여 검량선 비교법을 개발하였다. 이 방법을 사용한 결과 표준물 첨가법에서의 분석시간인 2시간보다 휠씬 빠른 50분으로 분석시간을 단축시킬 수 있었다. 또한 이 방법에 의한 상대오차는 5% 이내로 잘 맞았다. 이 방법으로 한국의 남해안과 서해안인 삼천포와 보령 앞바다의 바닷물 분석 결과를 보고한다. 아 연: 4.5∼13(S), 4.0∼10(B) 카드뮴: 0.03∼0.46(S), 0.05∼0.64(B) 납 : 0.96∼5.79(S). 0.59∼2.68(B) 구 리: 1.97∼7.89(S), 2.20∼3.20(B) S : 삼천포, B:보령 모든 농도는 ppb이다. Calibration curve method in differential pulse anodic stripping voltammetry has been developed and made applicable to the rapid analysis of trace metals (Zn, Cd, Pb, Cu) in seawater. By this method the running time of a determination was able to reduce 50 minutes from 2 hours in the case of standard addition method, within relative errors less than 5% except cadmium(max. 20%). This method was applied to the analysis of 40 samples from southern(Samcheonpo: S), western(Boryung: B) coastal surface seawater. Results shows 4.5∼13(S), 4.0∼10(B) for Zn: 0.03∼0.46(S), 0.05∼0.64(B) for Cd:0.9∼5.8(S), 0.6∼2.7(B) for Pb:2.0∼7.9(S), 2.2∼3.2(B) for Cu in ppb.

Co-treatment with Origanum Oil and Thyme Oil Vapours Synergistically Limits the Growth of Soil-borne Pathogens Causing Strawberry Diseases

Jong Hyup Park(Jong Hyup Park),Min Geun Song(Min Geun Song),Sang Woo Lee(Sang Woo Lee),Sung Hwan Choi(Sung Hwan Choi),Jeum Kyu Hong(Jeum Kyu Hong) 한국식물병리학회 2022 Plant Pathology Journal Vol.38 No.6

Vapours from origanum oil (O) and thyme oil (T) were applied to the four soil-borne strawberry pathogens Fusarium oxysporum f. sp. fragariae, Colletotrichum fructicola, Lasiodiplodia theobromae, and Phytophthora cactorum, causing Fusarium wilt, anthracnose, dieback, and Phytophthora rot, respectively. Increasing T vapour doses in the presence of O vapour strongly inhibited mycelial growths of the four pathogens and vice versa. When mycelia of F. oxysporum f. sp. fragariae and P. cactorum exposed to the combined O + T vapours were transferred to the fresh media, mycelial growth was restored, indicating fungistasis by vapours. However, the mycelial growth of C. fructicola and L. theobromae exposed to the combined O + T vapours have been slightly retarded in the fresh media. Prolonged exposure of strawberry pathogens to O + T vapours in soil environments may be suggested as an alternative method for eco-friendly disease management.

Effects of Ovariectomy and Corticosteroid-Induced Osteoporosis on the Osteoinductivity of rhBMP-2 in a Segmental Long-Bone Defect Model

Lee, Jae Hyup,Baek, Hae-Ri,Lee, Kyung-Mee,Zheng, Guang Bin,Shin, Sung Joon,Shim, Hee-Jong Mary Ann Liebert 2015 Tissue engineering. Part A Vol.21 No.15

<P>This study used the segmental long-bone defect model to assess the effects of osteoporosis on the formation of new bones and the osteoinductivity of recombinant human bone morphogenetic protein-2 (rhBMP-2). Seventy-two female Sprague-Dawley rats were divided into two groups: an osteoporosis group with ovariectomies and dexamathasone intramuscular injections and a sham group. When they reached 22 weeks in age, each group was further divided into two groups and a 5-mm defect was made in both fibular mid-shafts of each rat. One fibula in each rat was picked randomly and was injected with 0.05?mL of hydrogel carrier; the opposite fibula was injected with the same carrier mixed with rhBMP-2 (10?μg). After rearing for a further 5 and 9 weeks, the ratios of the lengths of the newly formed bones in the fibular defects were determined using micro-CT and undecalcified histology. The sham rhBMP-2-injected group-in all of the 5- and 9-week-kept groups-showed a significantly higher bridging bone formation ratio than the other three groups. The osteoporosis rhBMP-2-injected group showed a significantly higher ratio than both the non-rhBMP-2-injected sham hydrogel and the osteoporosis hydrogel groups. The comparison of the micro-CT parameters of the newly formed bones showed that the sham rhBMP-2 group at both 5 and 9 weeks compared with the osteoporosis rhBMP-2 group had significantly higher percentage bone volumes, trabecular thicknesses, and trabecular numbers, in addition to significantly lower specific surfaces, trabecular pattern factors, and structural model indices. The histology results showed that the sham-rhBMP-2 group began forming bridging bones in the defect areas at 5 weeks, and at 9 weeks, trabeculae and marrow spaces were observed. However, the osteoporosis rhBMP-2 group exhibited a relatively minor level of new bone and trabecula formation. Consequently, the rhBMP-2 group showed significantly increased bone formation in the osteoporosis rat fibular defect model compared with the hydrogel group, whereas the new bone quantities, qualities, and remodeling in the osteoporosis rhBMP-2 group were less effective than those in the sham-rhBMP-2 group, signaling that ovariectomy and corticosteroid-induced osteoporosis significantly undermines rhBMP-2 osteoinductivity.</P>

만성신부전을 동반한 신장의 Oncocytormatosis 1예

이창선,이서진,강지향,이공섭,최현주,홍종서,황보빈,김연수,안규리,한진석,김성권,이정상,이종욱,김승협 대한신장학회 2000 대한신장학회잡지 Vol.19 No.6