• Title/Summary/Keyword: C35

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A Case of Neonatal Alloimmune Thrombocytopenia due to Anti-HLA-B35 (항-HLA-B35 항체에 의한 신생아 동종면역성 혈소판 감소증 1례)

  • Choi, Jun-Seok;Kim, Soo-Yeon;Ihm, Chun-Hwa;Kim, Seung-Yeon
    • Neonatal Medicine
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    • v.16 no.2
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    • pp.248-254
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    • 2009
  • Neonatal alloimmune thrombocytopenia (NAIT) is induced by maternal antibodies to fetal platelet alloantigens. Because the main cause of NAIT is incompatibility to platelet specific antibodies, NAIT due to HLA antibodies are relatively rare. We managed a case of NAIT induced by maternal anti-HLA-B35 antibodies. The patient was a second born male. He had no petechiae or purpura at birth. He was admitted to the hospital due to fever for 5 days and a platelet count of $106\times10^9/L$. The fever subsided after admission but on the 2nd day of admission, petechiae developed on the chest wall and the platelet count decreased to $25\times10^9/L$. Other laboratory findings included C-reactive protein, prothrombin time, and partial thromboplastin time were normal. His mother's platelet count was normal and she had no history of bleeding. Anti-HLA-B35, B52, B56, C3, and C14 were identified in the mother's serum by a panel reactive antibody test and HLA-B35 antigen was identified in the father's and patient's sera. These finding suggested that maternal Anti-HLA-B35 antibody was a response to neonatal HLA-B35 antigen inherited from the father. The patient received concentrated platelet and intravenous immunoglobulin. The platelet count rose to $248\times10^9/L$ and was maintained thereafter.

Self-Diffusion of Hydrophobically End-Capped Polyethylene Oxide Urethane Resin by Using Pulsed-Gradient Spin Echo NMR Spetroscopy

  • Park, Jinwoo;Daewon Sohn;Lee, Youngil;Chaejoon Cheong
    • Macromolecular Research
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    • v.11 no.6
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    • pp.444-450
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    • 2003
  • Hydrophobically End-capped polyethylene oxide Urethane Resin(HEUR)-associating polymers, HEUR 35(8), HEUR 35(12), and HEUR 35(18), comprise a polyethylene oxide (PEO) having a molecular weight of 35,000 that is end capped with two C$\_$8/H$\_$17/, C$\_$12/H$\_$25/, and C$\_$18/H$\_$37/ alkyl chains, respectively. These associating polymers were synthesized by condensation reactions with polyethylene oxides and alkyl isocyanates. The self-diffusion coefficients of HEUR-associating polymers were measured in aqueous solution by pulsed-gradient spin-echo (PGSE) nuclear magnetic resonance (NMR) spectroscopy. All polymers underwent a decrease in their mean diffusion coefficients as the concentration was increased. However, the dispersion of the diffusion coefficients, ${\beta}$, about the mean fluctuated with changes in concentration. The large dispersion at low concentrations of HEUR 35(8) and HEUR 35(12) is related to the interaction between hydrophobic end groups, and the large dispersion at high concentrations of HEUR 35(18) is correlated with transient network formation. These results are valuable for predicting the associating mechanism of the large aggregates before and after their critical micelle concentration.

Effect of Seed Priming of Carrot, Lettuce, Onion, and Welsh Onion Seeds as Affected by Germination Temperature (발아온도에 따른 당근, 상추, 양파 및 파 종자의 Priming 효과)

  • Jeong, Yeon-Ok;Kim, Jong-Cheol;Cho, Jeoung-Lai
    • Horticultural Science & Technology
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    • v.18 no.3
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    • pp.321-326
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    • 2000
  • To compare germinability of primed seeds with that of water imbibed and nonprimed seeds at different temperatures, percent germination, number of days to attain 50% of the final germination percentage (T50) and mean number of days to germination (MDG) were evaluated at various temperatures ranged from $10^{\circ}C$ to $35^{\circ}C$. Primed carrot seeds in -0.50 MPa PEG 8000 showed higher percent germination at $10^{\circ}C$ or $35^{\circ}C$. Reductions in T50 and MDG values were observed at all germination temperatures when primed with the PEG. The PEG combined with 100 mM $K_3PO_4$ was not as effective as the PEG alone in improving the germinability of carrot seeds. Nonprimed lettuce seeds germinated only 2% at $30^{\circ}C$ or $35^{\circ}C$. However, priming with 50 mM $K_3PO_4$ increased germination to 40% at $30^{\circ}C$ and to 21% at $35^{\circ}C$. In contrast to the single treatment of 50mM $K_3PO_4$, priming lettuce seeds in a mixture of 50mM $K_3PO_4$ and 200 mM $KH_2PO_4$ resulted in a lower percentage of germination, but a significant greater reduction of T50 and MDG. Percent germination was increased when 200 mM $KH_2PO_4$-primed onion seeds and 100 mM $Ca(NO_3)_2$-primed Welsh onion seeds were germinated at $10^{\circ}C$ or $35^{\circ}C$. Combined treatments with $Ca(NO_3)_2$ for onion and with $KH_2PO_4$ for Welsh onion seeds did not improve percent germination, but they significantly reduced T50 and MDG.

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Biochemical Characteristics of the Granulosis Viruses DNA of Common Cabbage Worm, Pieris rapae and Pieris brassicae (배추흰나비 과립병바이러스 DNA의 생화학적 특성)

  • 류강선;진병래;강석권
    • Korean journal of applied entomology
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    • v.30 no.2
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    • pp.138-143
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    • 1991
  • This study was carried out to acquire some basic biochemical informations on the granulosis virus (GV) DNA of Pieris rapae and Pieris brassicae. The thermal denaturation temperature (Tm) and G+C content of the DNA of the viruses were $83.7^{\circ}C$ and 35.5% for P. rapae GV, $84.0^{\circ}C$ and 35.9% for P. brassicae GV, respectively. There were some differences in the DNA fragmentation patterns of the two GV's produced by digestion with restriction endonucleases such as EcoR I , BamH I and Hind m . The homololgy between the two DNAs was caculated to be 97.0%. The size of the genome was estimated to be 103 kbp for P. rapae GV and 108 kbp for P. brassicae GV.

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Studies on the Thermophilic Yeast for Ethanol Fermentation (고온성(高溫性) 효모(酵母)에 의(依)한 Ethanol 발효(醱酵))

  • Shin, Cheol Seung;Park, Yoon Joong
    • Korean Journal of Agricultural Science
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    • v.11 no.1
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    • pp.25-33
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    • 1984
  • This experiment carried out to obtain the thermophilic yeast, suitable for ethanol fermentation, and two usable strain were isolated. And microbial characteristics of these strains were investigated, and ethanol fermentation tested. The results obtained were as follows; 1. The selected yeasts were identified D-71 with Saccharomyces cerevisiae, and J-515 with Saccharomyces fermentati. 2. The strains D-71 and J-515 were showed the highest ethanol fermentation activity in the crushed corn mash of high concentration at $35^{\circ}C$, and showed the slightly lower at $40^{\circ}C$ than in the case of $35^{\circ}C$. 3. The strains D-71 and J-515 were showed the very higher ethanol fermentation activity than that of compared strain at $35^{\circ}C$ and $40^{\circ}C$, and at these temperature, fermentation period was a little bit of short. 4. On fermentation test using D-71 and J-515, the residual total sugar in the mash was very lower at $35^{\circ}C$.

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Clothing microclimate distribution on upper body for assessment of clothing comfort (의복의 쾌적성 평가를 위한 상반신에서의 의복기후분포)

  • 김양원;홍경희;박세진
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2002.11a
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    • pp.275-278
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    • 2002
  • 의복의 쾌적감에 영향을 미치는 인자로는 크게 미세공간의 온도, 습도, 기류인 의복내기후, 의복에 의해 피부가 받는 의복압, 의복과 피부와의 접촉감 등이다. 본 연구에서는 우선적으로 인체의 상반신에서 의복기후분포를 파악하였다. 상반신에서 의복기후 분포를 평가하기 위하여 건강한 남자 10명을 대상으로 25$\pm$1$^{\circ}C$, 습도 50$\pm$5%, 기류는 30cm/sec이하의 환경에서 의복기후를 측정하였다. 실험의복은 100% 면으로 된 긴 팔, 긴바지의 속내의를 착용하게 하였다. 측정결과 가슴에서의 의복내온도는 30.6~34.7$^{\circ}C$였고, 그 평균은 33.3$^{\circ}C$였다. 또한 의복내습도는 35.6~57.9%였고, 그 평균은 38.3%였다. 등에서의 의복내온도의 분포는 31.5~35.4$^{\circ}C$였고, 평균은 33.1$^{\circ}C$였으며, 의복내습도는 36.2~55.3%였으며, 평균은 38.8%였다. 상반신인 가슴과 등에서의 의복내온도와 의복내습도간에는 차이가 없는 것으로 나타났고, 상반신 전체의 의복내온도의 분포는 30.6~35.4$^{\circ}C$, 의복내 습도의 분포는 35.6~57.9%였다.

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The Immobilization Characteristics of Thiobacillus sp. IW (Thiobacillus sp. IW의 고정화특성에 관한 연구)

  • 김성미;오광중김동욱
    • KSBB Journal
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    • v.11 no.6
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    • pp.649-653
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    • 1996
  • Imnmobilization characteristics of Thiobacillus sp. IW which oxidizes sulfur compound was studied to use the bacterium in odor controlling equipment for the future. The optimum growth conditions for Thiobacillus sp. IW were pH7, $30^{\circ}C$ and the generation time was 38min, which was extremely fast compared with other sulfur oxidizing bacteria. Optimum growth conditions in activated carbon as a carrier was pH5, $35^{\circ}C$ and those in bioceramics was pH 7∼8, $35^{\circ}C$. Cell growth immobilized in bioceramics was more stable in pH, temperature change than that immobilized in activated carbon and total number of cells in bioceramics were also higher. Based on these results, the bioceramics is thought to be better carrier in immobilization of Thiobacillus sp. IW.

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Effect of Temperature, Soil Water Potential and Osmoconditioning on Germination and Seedling Elongation of Corn and Soybeans (온도ㆍ토양수분 포텐셜 및 삼투처리가 옥수수와 대두의 발아 및 묘신장에 미치는 영향)

  • Seong, Rak-Chun;Minor, Harry C.;Park, Keun-Yong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.31 no.1
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    • pp.56-61
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    • 1986
  • Germination and seedling elongation of maize (Dekalb XL 72B), and soybeans (Williams) were measured at two temperatures (15 and 35$^{\circ}C$), three soil water potentials (-1.50, -0.5, and -0.05 MPa), and four polyethy-lene glycol 8000 (PEG) levels (0, 20, 30, and 50 percent). Twenty conditioned seeds of each cultivar were treated with 0.2% thiram and planted 2 cm deep in sterilized Mexico silt loam soil which was subsequently compacted to a bulk density of 1.20 g/㎤. Seedling moisture content, dry weight, and length were measured for each treatment combination. Osmoconditioning with PEG showed little effect at high temperature or low soil water potential conditions. Soybeans had higher seedling moisture content than corn and both crops in-creased moisture uptake as soil water potential and temperature increased. Seedling length of corn was longer than soybeans at 35$^{\circ}C$ but shorter at 15$^{\circ}C$. Seedling dry weight of corn decreased at 35$^{\circ}C$ and that of soybeans decreased as soil water potential increased.

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Effects of Temperature and Shading on Germination and Early Growth in Pimpinella brachycarpa (온도와 차광이 참나물 발아 및 초기 생장 특성에 미치는 영향)

  • Jeon, Kwon Seok;Song, Ki Seon;Choi, Kyu Seong;Kim, Chang Hwan;Park, Yong Bae;Kim, Jong Jin
    • Journal of Bio-Environment Control
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    • v.23 no.4
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    • pp.342-348
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    • 2014
  • This study was carried out to determine the effects of temperature and shading on germination and early growth of Pimpinella brachycarpa. Experiment was performed by temperature controls ($5^{\circ}C$, $10^{\circ}C$, $15^{\circ}C$, $20^{\circ}C$, $25^{\circ}C$, and $30^{\circ}C$) and shading treatments (control, 35% shading, 50% shading, and 75% shading). Seed pre-treatment before the germination experiment was carried out by temperature (with low temperature and wetting treatments for 0day, 20days, and 40days). Seeds of P. brachycarpa were, 20days of seed pre-treatment, germinated well at $5^{\circ}C$ and the more temperature went up, the more germination rate went down. As a result of surveying shading treatments, the height, leaf area, leaf length, leaf width etc were the highest (7.3cm, $12.8cm^2$, 5.4cm, and 2.3cm, respectively) under 50% shading. Specially, the root was grown well under 35% and 50% shading. Fresh weight of shoot (leaves+stem) was the highest under 50% and 75% shading and dry weight of shoot (leaves+stem) was the highest under 35% and 50% shading. As a result of surveying the whole experiment, it is concluded that the production of P. brachycarpa seedling is more effective under 50% shading.

The effects of some additives on Methane Fermentation of Paper Mill Sludge treated with Alkali (알칼리 처리된 제지슬러지의 메탄발효에 미치는 몇몇 첨가제의 효과)

  • Choi, Jong-Woo;Lee, Kyu-Seung;Park, Seung-Heui
    • Korean Journal of Agricultural Science
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    • v.22 no.2
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    • pp.134-142
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    • 1995
  • In order to elevate the efficiency of methane fermentation using the paper mill sludge, this experiment was conducted at two temperature conditions($35^{\circ}C$ and $60^{\circ}C$), and overlooked the addition effects of ethyl acetate as a substrate, nickel as a constituent of $F_430$, and sulfur as a cell growth factor and reductant. The cellulose of paper mill sludge was degraded to lower molecular materials by heating at $60^{\circ}C$ and NaOH treatment. Methane forming rates were 4.8% from NaOH-treated paper mill sludge added with ethyl acetate, 16.5% with sodium sulfide, 19.8% with nickel trioxide, 31.9% with mixture, and 9.6% with control at $60^{\circ}C$, but 0.21% with ethyl acetate, 2.14% with nickel acetate, 3.02% with nickel sulfate, 3.34% with nickel trioxide and 0.62% with control at $35^{\circ}C$. Therefore, methane yield was increased by approximately 10-fold at $60^{\circ}C$ than $35^{\circ}C$, and fermentation liquid added with mixture(nickel trioxide+ethyl acetate+sodium sulfide) at $60^{\circ}C$ showed the medium pH(7.0), higher COD value and lower nitrogen content.

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