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Gi Ju Lee,Sung Min Park,Junghyun Jung,Jong Wha J. Joo 한국지능시스템학회 2020 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.20 No.3
A typical genome-wide association study is conducted through a single-phenotype analysis of the correlation between each phenotype and genotype one at a time. Alternatively, a multiple-phenotype analysis of the correlation between multiple phenotypes and a genotype often has many advantages over single-phenotype analysis. For example, statistical power in the association test may be increased in a multiple-phenotype analysis and thus may detect small effects that cannot be identified in a single-phenotype analysis. Of the several multiple-phenotype analytical methods that have been proposed, generalized analysis of molecular variance for mixed-model analysis (GAMMA) is used to analyze many phenotypes simultaneously while considering the population structure. This method shows higher accuracy than the other methods. However, GAMMA has not been widely used because no automated and user-friendly software is available; this is also the case with most other multiple-phenotype analysis methods. In addition, the lack of a parallel-processing option, which is essential in a genome-wide-association-studies analysis, is also prevalent in GAMMA. In this study, we propose an easy-to-use R package for GAMMA called GAMMA Renew (GAMMAR) that performs multiple-phenotype analysis using parallel processing. We evaluate GAMMAR using a recently published yeast dataset to locate trans-regulatory hotspots.
( Sang Mok Jung ),( Seul Gi Kang ),( Kwang Tae Kim ),( Han Joo Lee ),( A Reum Kim ),( Hyun Woung Shin ) 한국환경생태학회 2015 한국환경생태학회지 Vol.29 No.1
In this study, the proximate composition of Pyropia dentata was compared by the analysis of minerals and amino acids that were produced at Seocheon, Chungcheongnam-do and at Wando and Jangheung, Jeollanam-do. Moisture, ash and crude proteins were analyzed using the AOAC method, and crude lipid was analyzed using the Soxhlet method, and inorganic analysis was performed using ICP-OES. Amino acid was used for the amino acid analyzer. The proximate composition analysis, moisture content, maximum values were displayed in Wando while the maximum content of ash appeared at Jangheung’s Pyropia. Crude proteins was appeared at Seocheon’s Pyropia and the maximum amount of crude lipid, carbohydrate was appeared in Wando’s Pyropia. Inorganic analysis, calcium, potassium, magnesium, sodium, phosphorus, cobalt, chromium, copper, iron, manganese, nickel, zinc were analyzed from the Seocheon’s Pyropia, however, cobalt, chromium, and nickel was not detected in Wando’s Pyropia. For amino acid analysis, a total of 17 amino acids were detected: leucine, valine, aspartic acid, glutamic acid, and the amount of alanine accounted for about 57 % of total amino acids(26.1-28.7 %). The proximate composition, minerals, and amino acid of Pyropia dentata were different depending on the coastal ecological habitats.
Free Floating Thrombus of the Aorta
Sang Dong Kim,Jeong Kye Hwang,Jun Hyun Lee,Hang Joo Cho,Gi Young Sung,In Sung Moon,Ji Il Kim 대한외과학회 2011 Annals of Surgical Treatment and Research(ASRT) Vol.80 No.3
Purpose: Free-floating thrombus (FFT) of the aorta is very rare but has a high risk of distal embolization. While the necessity of treating such a condition is evident, the diagnostic and therapeutic modalities remain controversial. Thus, we reviewed seven cases of FFT of the aorta. Methods: A retrospective study was performed usings even patients diagnosed with FFT of the aorta at the Catholic University of Korea between January 1999 and December 2008. We excluded those patients who had thrombi with concomitant atherosclerotic or aneurysmal aorta. Results: The mean patient age was 59.6±13.6 years old. The male-to-female ratio was 3:4. Embolization to arteries of the extremities occurred in two patients and to visceral arteries in four patients. Of these seven patients, four were initially treated with anticoagulation, and two were initially treated with thrombectomy; one patient refused any kind of treatment. Of the four patients treated with anticoagulation, three experienced complete dissolution of the thrombi while anticoagulation proved ineffective in the remaining patient who subsequently underwent thrombectomy. In all of the three patients who had received thrombectomy, postoperative anticoagulation was employed. There was no recurrence of FFT of the aorta during the follow-up period. Conclusion: Were commend systemic anticoagulation with low molecular weight heparin (LMWH) as the first line of treatment for FFT of the aorta. If the thrombus persists or recurrent embolism occurs during anticoagulation therapy, surgery should be undertaken.
Screening and identification of bioorganic light-emitting substances from marine macrophytes
Sang Mok Jung,Han Seong Lee,Han Joo Lee,Seul Gi Kang,Ji Su Son,Jae Hyuk Jeon,Hee Baik Chae,Hyun Woung Shin 한국조류학회I 2015 ALGAE Vol.30 No.2
Organic light-emitting materials in marine macrophytes from various coastal environments were identified. Twentyeight species from the solvent fractions were examined and identified as candidates for bioorganic light-emitting materials using photoluminescence (PL) spectra and gas chromatography-mass spectrometry. We selected 16 solvent fractions from a total of 1,221 prepared from Ishige okamurae, Sargassum confusum, Grateloupia elliptica, Chondracanthus intermedius, Porphyra yezoensis, Meristotheca papulosa, Gelidium amansii, and Scytosiphon lomentaria. The maximum light-emitting PL spectra appeared at various colors, mainly between blue and green, based on chromaticity coordinates, from solvent fractions of M. papulosa, G. amansii, G. elliptica, P. yezoensis, S. lomentaria, I. okamurae, and C. intermedius. These results will contribute to the development of novel organic light-emitting materials.
Analysis of Tropospheric Carbon Monoxide in the Northeast Asia from MOPITT
Sang Hee Lee,GI Hyuk CHoi,Hyo Suk Lim,Joo Hee Lee 大韓遠隔探査學會 2003 大韓遠隔探査學會誌 Vol.19 No.3
The Measurement of Pollution in the Troposphere (MOPITT) instrument is an eight-channel gas correlation radiometer that launched on the Earth Observing System (EOS) Terra spacecraft in 1999. Its main objectives are to measure carbon monoxide (CO) and methane (CH4) concentrations in the troposphere. This study analyzes tropospheric carbon monoxide distributions using MOPITT data and compare with ozone distributions in Northeast Asia. In general, seasonal CO variations are characterized by a peak in spring and decrease in summer. Also, this study revealed that the seasonal cycles of CO are maximum in spring and minimum in summer with average concentrations ranging from 118ppbv to 170ppbv. The monthly average of CO shows a similar profile to those of O3. This fact clearly indicates that the high concentration of CO in spring is caused by two possible causes: the photochemical CO production in the troposphere, or the transport of the CO in the northeast Asia. The CO and O3 seasonal cycles in the Northeast Asia are influenced extensively by the seasonal exchange of the different types of air mass due to the Asian monsoon. The continental air masses contain high concentrations of O3 and CO due to higher continental background concentrations and sometimes due to the contribution of regional pollution. In summer the transport pattern is reversed. The Pacific marine air masses prevail over Korea, so that the marine air masses bring low concentrations of CO and O3, which tend to give the apparent minimum in summer.