• Journal of Species Research
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• v.7 no.3
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• pp.210-221
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• 2018

Eight bacterial strains assigned to the phylum Firmicutes were isolated from the soil samples in Korea. Phylogenetic analysis based on 16S rRNA gene sequences showed that strains 18JY14-16, 18JY14-35, 18JY42-5, 18JY12-20, 18JY35-8, 18JY76-9, 18JY39-1 and 18JY54-12 were most closely related to Paenibacillus lupini (MH497638; 99.4%), Paenibacillus illinoisensis (MH497643; 99.8%), Paenibacillus tundrae (MH497658; 99.7%), Paenibacillus selenitireducens (MH497639; 99.4%), Paenibacillus eucommiae (MH 497640; 99.9%), Paenibacillus vini (MH497654; 99.4%), Paenibacillus gorillae (MH497647; 99.5%), and Paenibacillus macquariensis (MH497649; 99.9%) respectively. These Paenibacillus species were Gram-stain-positive, rod-shaped and radiation resistant bacteria. This is the first report of these nine bacterial species in Korea.

• Journal of Genetic Medicine
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• v.14 no.1
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• pp.1-7
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• 2017

Purpose: The aim of this study was to assess the diagnostic efficacy of noninvasive prenatal screening for trisomy 18 by assessing the levels of unmethylated-maspin (U-maspin) and fetal nuchal translucency (NT) thickness during the first trimester of pregnancy. Materials and Methods: A nested case-control study was conducted using maternal plasma samples collected from 65 pregnant women carrying 11 fetuses with trisomy 18 and 54 normal fetuses. We compared the U-maspin levels, NT thicknesses, or a combination of both in the first trimester between the case and control groups. Results: U-maspin levels and NT thickness were significantly elevated in the first trimester in pregnant women carrying fetuses with trisomy 18 when compared to those carrying normal fetuses (27.2 vs. 6.6 copies/mL, P<0.001 for U-maspin; 5.9 vs. 2.0 mm, P<0.001 for NT). The sensitivities of the U-maspin levels and NT thickness in prenatal screening for fetal trisomy 18 were 90.9% and 90.9%, respectively, with a specificity of 98.1%. The combined U-maspin levels and NT thickness had a sensitivity of 100% in prenatal screening for fetal trisomy 18, with a specificity of 98.1%. Conclusion: A combination of U-maspin levels and NT thickness is highly efficacious for noninvasive prenatal screening of fetal trisomy 18 in the first trimester of pregnancy.

• Korean journal of food and cookery science
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• v.6 no.4 s.13
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• pp.27-32
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• 1990

Lipids of Job's tears (Yullmoo) were extracted by the mixture of chloroform: methanol (2:1, v/v) and from these lipids, triglycerides were separated by column chromatography (Sephadex G-25 column) and then confirmed by thin layer chromatography (TLC) and reconfirmed by gas chromatography (GC). The triglycerides were fractionated into 6 groups on the basis of their partition numbers (PN) by reverse phase high performance liquid chromatography (HPLC) on a column Shimpack CLC-ODS using tetrahydrofuran-acetonitril (25:75) mixture as a solvent. Each of these collected fractions gave one to two peaks in the GC chromatograms according to the acyl carbon number (CN) of the triglyceride and fatty acid composition of the triglycerides were also analyzed by GC. From the results, the major triglycerides of Job's tears lipids were estimated to be C18:1 C18:2 C18:2 (OLL, 38.2%), C16:0 C18:2 C18:3 (PLLn, 15.7%), C18:1 C18:1 C18:2 (OOL, 12.6%).

• Korean Journal of Acupuncture
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• v.23 no.2
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• pp.1-18
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• 2006

Objectives: The subject of this research is the catechism on medicine between the doctors of Joseon and Japan in the 18th century through Choson Delegation(朝鮮通信使 ). Methods: The author intended to review and analyze the contents of catechism related to Acupuncture and Moxibustion and determined the characteristics of Joseon and Japan ?s Acupuncture and Moxibustion. Results: At the time, Japanese doctors had a grasp on most theories of Acupuncture and Moxibustion and were very specialized clinically. They usually used filiform needles with various techniques, and already they had many different schools in practice. However, they wanted to know if their Acupuncture and Moxibustion skills were up to the international standard, especially to Joseon, whom they regarded as a country advanced in Acupuncture and Moxibustion. They wanted to com- pare and contrast their Acupuncture and Moxibustion with Joseon's. 18th century Joseon was high time for Acupuncture and Moxibustion. Various tools were used in surgery, and varieties of needles were used to stimulate acupuncture points. The development of tools evinces the precision of Joseon's Acupuncture and Moxibustion at the time. Also, comprehensive works such as DongUiBoGam(東醫寶鑑) and UiHaklpMun( 醫學入門) greatly influenced Acupuncture and Moxibustion. Because of this impact, it can be deduced that Acupuncture and Moxibustion emphasizing Jang(臟) and Bu(腑) organs and Internal Injury developed greatly. In addition, acupuncturist Holm(許任)'s fame continued from the 17th century into the 18th century, and his medical practice left a huge mark on not only Joseon but other eastern Asian countries as well. Conclusions: We found out the evidences that there were a lot of exchanges of acupuncture and moxibustion between Korea and Japan based of the Joseon TongShinSa (Emissary)'s record of catechism on medicine in the 18th century.

• IMMUNE NETWORK
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• v.13 no.1
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• pp.34-41
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• 2013

Interleukin-18 (IL-18) has been known to induce interferon-${\gamma}$ (IFN-${\gamma}$) production and promote Th1 immunity. Although mammalian IL-18 has been characterized in great detail, the properties and application of chicken IL-18 remain largely uninvestigated as of yet. In this study, we evaluated the immunomodulatory properties of Salmonella enterica serovar Typhimurium expressing chicken interleukin-18 (chIL-18) on immune responses induced by avian influenza (AI) and Newcastle disease (ND) vaccines. After oral administration of S. enterica serovar Typhimurium expressing chIL-18, chickens were vaccinated intramuscularly with the recommended dose of either inactivated AI H9N2 vaccine or ND (B1 strain) vaccine. Chickens receiving a primary vaccination were boosted using the same protocol 7 days later. Humoral and cell-mediated immune responses were evaluated in terms of HI antibody titers and proliferation and mRNA expression of IFN-${\gamma}$ and IL-4 of peripheral blood mononuclear cells (PBMC) in response to specific antigen stimulation. According to our results, oral administration of S. enterica serovar Typhimurium expressing chIL-18 induced enhanced humoral and Th1-biased cell-mediated immunity against AI and ND vaccines, compared to that of chickens received S. enterica serovar Typhimurium harboring empty vector. Therefore, we conclude that our proposed vaccination regimen using inactivated AI and ND viruses along with oral administration of S. enterica serovar Typhimurium expressing chIL-18 may provide a novel approach in protecting chicken from currently circulating AI and ND virus strains.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38A no.1
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• pp.88-95
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• 2013

We propose a novel driver circuit design using $0.18{\mu}m$ CMOS process technology that drives a 1550 nm high-speed VCSEL used in optical transceiver. We report a distinct improvement in bandwidth, voltage gain and eye diagram at 3.1Gb/s data rate in comparison with existing topology. In this paper, the design and layout of a 3.1Gb/s VCSEL driver for optical transceiver having arrayed multi-channel of integrating module is confirmed.

• Journal of the Korean Ceramic Society
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• v.31 no.6
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• pp.617-622
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• 1994

Single crystals of misfit layered (LaS)xVS2(x 1.18) were grown using LaCl3(or I2) as a mineralizer (or transport agent) for the single crystal X-ray diffraction analysis. Procession photographs of (LaS)xVS2(x 1.18) were analyzed as the stacking structure of two kinds of LaS-and VS2-subcell. The result shows that two sublattices have common periodicities along the a*-and c*-axes, respectively, but not along the b*-axis. Sublattice dimensions of LaS and VS2 layers along b-axis were 5.67$\AA$ and 3.42$\AA$, respectively. Their ratio was 1.657 which is very close to 5/3.

• Animal Systematics, Evolution and Diversity
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• v.36 no.3
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• pp.268-273
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• 2020

A spionid polychaete, Boccardiella hamata (Webster, 1879) has been found from mud in crevices between the shells of oysters and adherent substrates in South Korea. The sequences of mitochondrial DNA (mtDNA) cytochrome c oxidase subunit 1 (CO1), 16S ribosomal DNA (16S), and the nuclear 18S ribosomal DNA (18S) from Korean individuals of Boccardiella hamata were determined in the present study. The molecular analysis based on the 18S rRNA gene sequences showed clear separation among the spionid polychaete species, and the sequences of Korean and Japanese individuals are completely identical. The morphological diagnosis and photographs of B. hamata are also provided.

• Korean Journal of Food Science and Technology
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• v.18 no.4
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• pp.301-305
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• 1986

Fatty acid composition of domestic margarines (summer 12, winter 12 kinds) and foreign margarines (U.S.A. 4, Japan 8, Denmark 2 kinds) for home use were determined. The major fatty acids were palmitic acid (16:0), stearic acid (18:0), oleic acid (18:1), linoleic acid (18:2) and linolenic acid (18:3) in all of the margarines. P/S ratios of winter products were $0.40{\sim}l.74$, those of summer products were $0.21{\sim}l.82$ in domestic margarines. Therefore degree of polyunsaturate in winter product was higher than that in summer product. P/S ratios of foreign margarines were $0.82{\sim}2.91$ irrespective of type.P/Sratios of stick and soft type in foreign margarines were similar as $0.82{\sim}2.59,\;0.90{\sim}2.67$, respectively Those of PUFA (polyunsaturated fatty acid) type and LFS (low fat spread) were 2.91, 2.70, respectively.

• Journal of Genetic Medicine
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• v.9 no.2
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• pp.101-103
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• 2012

Paracentric inversion of chromosome 18 is a rare cytogenetic abnormality. The vast majority of paracentric inversions are harmless and the offspring of paracentric inversion carriers have only slightly elevated risks for unbalanced karyotypes. However, various clinical phenotypes are seen due to breakpoint variation or recombination. We report a prenatally detected case of familial paracentric inversion of chromosome 18, inv(18)(q21.1q22), with normal clinical features.