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Efficient Plant Regeneration from Shoot Tip and Young Leaf in Rhodiola sachalinensis A. Bor.
Chi,Hyung-Joon,Yoon,Jae-Ho,Yang,Deok-Chun,Song,Won-Seob 한국자원식물학회 2003 Plant Resources Vol.6 No.3
The shoot tip and young leaf of Rhodiola sachalinensis were cultured to invest the plant growth regulator condition for callus induction, shoot and root regeneration. When the shoot tip was sterilized in 2.0% of NaOCl for 20min., the contamination rate was the lowest. And the survival rate of the culture material was good in carbenicillin 500mg/L treatment group. Callus was obtained from shoot tip and young leaf segments. NAA 0.1-1.0mg/L and 2,4-D 0.1-0.5mg/L alone treatment were shown to have a good response on callus induction from shoot tip culture. In the case of young leaf culture, NAA and 2,4-D 0.1-0.5mg/L alone treatment were good in callus induction. In culturing shoot tip NAA 0.5mg/L and BA 0.5mg/L, NAA1.0mg/L and BA 0.lmg/L combination treatment was good in shoot regeneration. The regenerated shoots were rooted on MS medium supplemented with NAA and BA combination treatment. Especially, NAA 1.0mg/L and BA 0.1mg/L combination treatment was effective for root regeneration.
Hwang, Chi-Young,Kim, Gi Heon,Yang, Jong-Heon,Hwang, Chi-Sun,Cho, Seong M.,Lee, Won-Jae,Pi, Jae-Eun,Choi, Ji Hun,Choi, Kyunghee,Kim, Hee-Ok,Lee, Seung-Yeol,Kim, Yong-Hae The Royal Society of Chemistry 2018 Nanoscale Vol.10 No.47
<P>Correction for ‘Rewritable full-color computer-generated holograms based on color-selective diffractive optical components including phase-change materials’ by Chi-Young Hwang <I>et al.</I>, <I>Nanoscale</I>, 2018, DOI: 10.1039/c8nr04471f.</P>
원을지(Ul Chi Won),이선재(Sun Jae Lee) 한국복식학회 1999 服飾 Vol.46 No.-
The fashion advertisement is communication method between clothing and consumer. The development of mass communication accelerated that In modern society Post-modernism advertisement is a specialized and separated form so it confuses the consumers who are used in traditional AD. The peculiarities (non-form, destruction of description, compound of genre, mixing of reality and fiction) are more reflected in fashion advertisement. The sample consisted of 425 mail and female and the results were analyzed using frequency and percentage calculation, Close tabs, T-Test, Oneway Anova, Factor analysis, Chi-square Test, Regression, Correlation Analysis. The result of this study were as follows: The post-modernism fashion ad is the separated and reflected form for young age`s favorite. By the factor analysis of consumer response in each 5 emotional factors proved to be valid ones(fine, negative, sexual, stimulative, constructive aspects). The fine and negative aspects of the factors are very concerned with the consumer`s favorite attitude of fashion ad. There is no significant difference in age, job but sex has a significant difference. In according to the method of the ad expression consumer`s acceptance is difference in sex. There were no significant concern with excess effects and purchase intend in fashion advertisement.
( Won-young Kim ),( Seungyong Park ),( Hwa Jung Kim ),( Moon Seong Baek ),( Chi Ryang Chung ),( So Hee Park ),( Byung Ju Kang ),( Jin Young Oh ),( Woo Hyun Cho ),( Yun Su Sim ),( Young-jae Cho ),( Sun 대한결핵 및 호흡기학회 2019 Tuberculosis and Respiratory Diseases Vol.82 No.3
Background: Beyond its current function as a rescue therapy in acute respiratory distress syndrome (ARDS), extracorporeal membrane oxygenation (ECMO) may be applied in ARDS patients with less severe hypoxemia to facilitate lung protective ventilation. The purpose of this study was to evaluate the efficacy of extended ECMO use in ARDS patients. Methods: This study reviewed 223 adult patients who had been admitted to the intensive care units of 11 hospitals in Korea and subsequently treated using ECMO. Among them, the 62 who required ECMO for ARDS were analyzed. The patients were divided into two groups according to pre-ECMO arterial blood gas: an extended group (n=14) and a conventional group (n=48). Results: Baseline characteristics were not different between the groups. The median arterial carbon dioxide tension/ fraction of inspired oxygen (FiO<sub>2</sub>) ratio was higher (97 vs. 61, p<0.001) while the median FiO<sub>2</sub> was lower (0.8 vs. 1.0, p<0.001) in the extended compared to the conventional group. The 60-day mortality was 21% in the extended group and 54% in the conventional group (p=0.03). Multivariate analysis indicated that the extended use of ECMO was independently associated with reduced 60-day mortality (odds ratio, 0.10; 95% confidence interval, 0.02-0.64; p=0.02). Lower median peak inspiratory pressure and median dynamic driving pressure were observed in the extended group 24 hours after ECMO support. Conclusion: Extended indications of ECMO implementation coupled with protective ventilator settings may improve the clinical outcome of patients with ARDS.
Won, Chi-Hyoung,Jang, Jae Hoon,Kim, Sung-Dae,Moon, Joonoh,Ha, Heon-Young,Kang, Jun-Yun,Lee, Chang-Hoon,Lee, Tae-Ho,Kang, Namhyun Elsevier 2019 JOURNAL OF NUCLEAR MATERIALS Vol.515 No.-
<P><B>Abstract</B></P> <P>A borated stainless steel based on the composition of type 304 stainless steel containing different amount of boron was fabricated through a conventional ingot metallurgy-hot working process, and the relationship between the microstructure and mechanical properties was investigated. As the content of boron increases, the volume fraction of (Fe,Cr)<SUB>2</SUB>B increases, as predicted by thermodynamic equilibrium calculations. As the annealing proceeds at 1180°C, the plate-like shape of (Fe,Cr)<SUB>2</SUB>B turned into a spherical shape. In addition, brittle fracture of the boride was dominant before the heat-treatment, but ductile mode due to the formation of dimples in the austenite was dominant after heat-treatment. In the specimen containing 1.78 wt% of boron, the Cr and Ni contents of the austenite matrix were homogenized after annealing at 1180 °C for 192 h, and the strength and ductility were simultaneously improved.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
( Won Jae Chi ),( Jae Seon Park ),( Min Jung Kwak ),( Jihyun F. Kim ),( Yong Keun Chang ),( Soon Kwang Hong ) 한국미생물 · 생명공학회 2013 Journal of microbiology and biotechnology Vol.23 No.11
An agar-degrading bacterium, designated as strain G7T, was isolated from a coastal seawater sample from Gaya Island (Gayado in Korean), Republic of Korea. The isolated strain G7T is gram-negative, rod shaped, aerobic, non-motile, and non-pigmented. A similarity search based on its 16S rRNA gene sequence revealed that it shares 95.5%, 90.6%, and 90.0% similarity with the 16S rRNA gene sequences of Catenovulum agarivorans YM01T, Algicola sagamiensis, and Bowmanella pacifica W3-3AT, respectively. Phylogenetic analyses demonstrated that strain G7T formed a distinct monophyletic clade closely related to species of the family Alteromonadaceae in the Alteromonas-like Gammaproteobacteria. The G+C content of strain G7T was 41.12 mol%. The DNA-DNA hybridization value between strain G7T and the phylogenetically closest strain YM01T was 19.63%. The genomes of G7T and YM01T had an average ANIb value of 70.00%. The predominant isoprenoid quinone of this particular strain was ubiquinone-8, whereas that of C. agarivorans YM01T was menaquinone-7. The major fatty acids of strain G7T were Iso-C15:0 (41.47%), Anteiso-C15:0 (22.99%), and C16:1ω7c/iso-C15:0 2-OH (8.85%), which were quite different from those of YM01T. Comparison of the phenotypic characteristics related to carbon utilization, enzyme production, and susceptibility to antibiotics also demonstrated that strain G7T is distinct from C. agarivorans YM01T. Based on its phenotypic, chemotaxonomic, and phylogenetic distinctiveness, strain G7T was considered a novel genus and species in the Gammaproteobacteria, for which the name Gayadomonas joobiniege gen. nov. sp. nov. (ATCC BAA-2321 = DSM25250T = KCTC23721T) is proposed.