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消石灰施用이 잎담배 “香草”의 收量 및 Nicotine含量에 미치는 影響
이인걸 慶北大學校 1970 論文集 Vol.14 No.-
Studies were made to investigate on the effect of Calcium Hydroxide to yield and nicotine contents of tobacco Hyangtchio leaf under the field. Tobacco Hyangtchio is a Korean local variety and light air-cured type. The applicatation amounts of Calcium Hydroxide was 150㎏, 300㎏ and 600㎏ Per 10a. respectively. Results of the experiment were Summarized as follows; 1. It was recognized that the Calcium Hydroxide have a effect to accelerate the growth of leaf tobacco Hyangtchio. 2. The blocks treated with the Calcium Hydroxide increased the yield by 20 to 25 percentage than control. 3. The blocks treated with the Calcium Hydroxide decreased by 16 to 25 percent in the main leaf and 13 to 27 percent in the top leaf than the control block. And there was a tendency to decrease the nicotine contents according to increase the application amounts of Calcium Hydroxide, but no significant between the blocks applicated 300㎏ and 600㎏ per 10are.
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Expression of Multipotential Progenitor Cells in the Pathogenesis of Mooren's Ulcer
이인걸,Juan Ye,김재찬 연세대학교의과대학 2005 Yonsei medical journal Vol.46 No.3
The aim of this study was to assess the involvement of multipotential progenitor cells in the pathogenesis of Mooren's ulcer using immunohistochemical staining techniques. Tissue specimens were collected from 3 Mooren's ulcer patients who underwent lamellar keratectomy. Immunohistochemical staining patterns were analyzed using antibodies: CD34, c-kit, STRO-1, CD45RO, VEGF and α-SMA. Strong positive CD34, c-kit and STRO-1 cells were revealed in Mooren's ulcer specimens, especially in the superficial stroma. A few weakly expressed CD34 stroma cells were seen in normal limbal cornea but no immunoreactivity for c-kit and STRO-1 could be found. CD45RO positive T cells were found to have infiltrated in Mooren's ulcer. The immunostaining pattern of VEGF and α- SMA was closely correlated with the degree of expression and the number of CD34 positive cells. Bone marrow-derived multipotential progenitor cells may be involved in the pathogenesis of Mooren's ulcer by synergizing with other factors to amplify autoimmune destructive reactions and to contribute to the regeneration process. Specific therapeutic strategies that target the role of these cells in the disease are warranted.
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이인걸,김재찬.In Gul Lee. M.D.. Jae Chan Kim. M.D.. Ph.D. 대한안과학회 2005 대한안과학회지 Vol.46 No.2
Purpose: Retinal neovascularization in diabetes has been thought to follow the release of local angiogenic factors in the retina. We hypothesized that neovascularization of diabetic retinopathy is a systemic vasculogenesis rather than a local angiogenesis. Thus, we evaluated the concentrations of circulating endothelial progenitor cells (EPCs) and stem cell modulation factors such as vascular endothelial growth factor (VEGF), erythropoietin (EPO), and substance p (SP) in the peripheral blood of diabetic retinopathy patients. Methods: We studied 15 normal controls and 45 Type 2 diabetic patients [non-DR group (n=15), NPDR group (n=15), and PDR group (n=15)]. We measured circulating CD34+mononuclear cells (CD34+MNCs) and c-Kit+ mononuclear cells (c-Kit+MNCs) by flow cytometry. VEGF, EPO and SP in the peripheral blood were measured by ELISA. Results: The circulating CD34+MNCs and c-Kit+MNCs increased in the NPDR and PDR groups compared with the control group (P<0.01). The serum level of VEGF was increased in the NPDR and PDR groups compared with the control group (P<0.05). The level of EPO was exclusively elevated in the non-DR group compared with the other three groups (P<0.01). The circulating SP level increased in the NPDR and PDR groups compared with the control group (P<0.05). Conclusions: The present study is the first to demonstrate that CD34+MNCs, c-Kit+MNCs and their modulator are elevated in diabetic retinopathy patients. Therefore, it is possible that circulating EPCs and serum VEGF, EPO and SP may be involved in the progression of diabetic retinopathy.
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李寅杰,李準琸 慶北大學校 1973 論文集 Vol.17 No.-
Experiment on the effects of vinyl mulching and chemical controller maleic acid hydrazide to Turkish tobacco variety Samsun-Maden were conducted at the Taegu Tobacco Experiment Station during the 1972. The concentration of M. H. was 0.5 per cent solution at the rate of 15ml per plant and the numbers of M. H. treated times were divided into control and from once to trice at intervals of eight days before flowering date. The results may be briefly summarized as follows: 1. Vinyl mulching had an effect to promote the early plant growth compare with nonmulching, and the reverse was the case in late plant growth. 2. There was a trend to decrease significantly the percentage of dry-up leaves with increase in the numbers of M. H. treated times and increase the percentage in the vinyl mulching blocks compare with non-mulching. 3. Total dry weight of each treatment appeared no significant differences from others, but the increases in dry weight of leaves from once or additional treatment of M. H. showed significant differences and the reverse was the case of roots and tops. 4. The maturing of leaves were promoted significantly by the treatment of vinyl mulching or M. H., and it also proved that the effect of additional treatment of M. H. 5. Yields were increased significantly with increase in the numbers of M. H. treated times, but not appeared the significant difference in quality. 6. Total alkaloid was decreased and the reverse was the case of total sugar in the sun-cured leaves by the treatment of vinyl mulching. When the M. H. was treated only once total alkaloid and sugar in the sun-cured leaves were increased compare with control, but decreased gradually with additional treatment.
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李寅杰 慶北大學校 1967 論文集 Vol.11 No.-
In Korea, the harvest period of barley is a long rainy season. Occurence of blight disease in barley seedlings is a very serious problem during this period. So that, studies on the basic problems to control this disease was carried out to solve these problems in this paper. Phenyl mercuric acetate and 0.2% CuSO_4 were sprayed to barley seedlings. After 24 hours treatment, artificial precipitation were continuously applied to barley seeds. The results obtained were as follows: 1. Effect of P. M. A. on the control of blight disease was so high and showed 0.1% leveled significant contrast with the control plot. But, in the plot of CuSO_4, significant was not appeared. 2. It is serious fact that Hg remains on the barley seeds, which is harmful to the health of mankind as shown an Table 5. in P. M. A. plot.
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李寅杰 慶北大學校 1962 論文集 Vol.6 No.-
Planted rice seedling in early spring at frame during 1957 to 1958 but many TTUNMYO(Mureaoae) occured at frame nursery, so writer to find cause of its occuring. Experiments were carried under the artificial growth circumstance; Card-board-box, Glass-box. Different temperature of water irrigated. 1/20000 Wagner pot used. The TTUNMYO occurred by the difference of soil temperature and frame room temperature, and always requires to keep soil temperature and frame room temperature eqully for prevention of its occurrence.
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穗發牙抑制에 關한 硏究 : 麥類種子의 後熱其間에 關하여
李寅杰 慶北大學校 1968 論文集 Vol.12 No.-
Germination of barley ear occurs during the rainy season of the year in Korea. Important reason of germination is based on the length of after-ripening. 31 barley varieties cultivated in Korea were collected to study on the germination by their length of after ripening. The results obtained were as follows; 1) Germination capacity of barley ear showed considerable difference between varieties according to their length of after-ripening. 2) All the varieties were low in the germination capacity except Jae-re Jang-mang and Kyung23 under the range of 50% germination among 31 selected varieties. 3) Barley varieties cultivating in Kyung-pook province are high in the ear germination capacity. 4) Ear germination capacity was low on the barley varieties developed at Grops Experiment Station. O.R.D. in Suwon. 5) Low ear germination varieties increased after beginning of ear germination while high varieties decreased after beginning of ear germination.
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