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Jae‑Gil Jung,Young‑Hee Cho,Tae‑Young Ahn,Jae‑Hee Yoon,Sang‑Hwa Lee,Jung‑Moo Lee 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.5
The correlation between primary Si and silicide refinement induced by ultrasonic treatment (UST) of multicomponent Al–Sialloy containing Ti, Zr, V, and P was investigated. UST significantly refined the primary Si phase owing to cavitation-inducedwetting and deagglomeration of MgAl2O4particles. Lowering the UST finish temperature caused deterioration of the degreeof primary Si refinement, instead leading to silicide refinement. Cavitation-induced silicide nucleation on wetted MgAl2O4consumed the MgAl2O4particles, particularly in the case of primary Si nucleation. Similarly, the formation of an AlP phaseon the silicide phase reduced the nucleation efficiency of the AlP phase. Poisoning of the MgAl2O4and AlP phases by thesilicide phase was responsible for the deterioration in primary Si refinement. Room-temperature tensile strength and hightemperatureelongation were increased by UST and were dependent on the size of primary Si.
Ganglioside GM1 influences the proliferation rate of mouse induced pluripotent stem cells
( Jae-sung Ryu ),( Kyu-tae Chang ),( Ju-taek Lee ),( Malg-um Lim ),( Hyun-ki Min ),( Yoon-ju Na ),( Su-bin Lee ),( Gislain Moussavou ),( Sun-uk Kim ),( Ji-su Kim ),( Kinarm Ko ),( Kisung Ko ),( Kyung- 생화학분자생물학회(구 한국생화학분자생물학회) 2017 BMB Reports Vol.50 No.6
The ACKNOWLEDGEMENTS should be corrected as follows, "This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea. The published article in this journal was a part of the 2013 Doctoral thesis of Jae-Sung Ryu submitted to Wonkwang University, Korea." and not "This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea."
Choi, Dukhyun,Choi, Min-Yeol,Choi, Won Mook,Shin, Hyeon-Jin,Park, Hyun-Kyu,Seo, Ju-Seok,Park, Jongbong,Yoon, Seon-Mi,Chae, Seung Jin,Lee, Young Hee,Kim, Sang-Woo,Choi, Jae-Young,Lee, Sang Yoon,Kim, Jo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.19
<B>Graphic Abstract</B> <P>The cover shows an image of fully rollable transparent nanogenerators synthesized using chemical vapor deposition grown large-scale graphene sheets as transparent electrodes and piezoelectric ZnO nanorod arrays. Sang-Woo Kim, Jae-Young Choi, and co-workers report on p. 2187 the electrical and structural stability of the nanogenerators, with excellent charge scavenging performance under external mechanical loads such as bending and rolling. This study shows that graphene-based nanogenerators are very promising for self-powered rollable transparent device applications. <img src='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content.gif' alt='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content'> </P>
Impact of hs-CRP on outcomes in acute myocardial infarction according to LDL cholesterol level (초)
( Sang Woong Choi ),( Yun Kyeong Cho ),( Jae Pil Lee ),( Ji Hyun Sohn ),( Hyun Ok Cho ),( Hyoung Seob Park ),( Hyuck Jun Yoon ),( Hyung Seop Kim ),( Chang Wook Nam ),( Seung Ho Hur ),( Yoon Nyun Kim ) 대한내과학회 2012 대한내과학회 추계학술대회 Vol.2012 No.1
Yoon, Ji-Hye,Kim, Soo-A,Kim, Jae-Il,Park, Jong-Hwan,Ahn, Sang-Gun,Yoon, Jung-Hoon Wiley Subscription Services, Inc., A Wiley Company 2010 Head & neck Vol.32 No.5
<B>Background.</B><P>5′-Nitro-indirubinoxime (5′-NIO) is a derivative of the bis-indole indirubin that exhibits anticancer activities. The present study investigated the anti-invasive action of 5′-NIO in salivary gland ductal adenocarcinoma, SGT cells.</P><B>Methods.</B><P>The wound-scratch, migration, and invasion assays were applied to determine the effect of 5′-NIO on the migration capacity and invasiveness of SGT cells. Reverse-transcriptase–polymerase chain reaction (RT-PCR) and Western blot were performed to evaluate the impacts of 5′-NIO on the expression of β1 integrin and matrix metalloproteinases MMP-2 (gelatinase-A) and MMP-9 (gelatinase-B).</P><B>Results.</B><P>The viability of SGT cells was decreased by 5′-NIO in a dose-dependent manner, but not significant at the concentrations of 0.5 and 1 μM. Under the concentrations showing little cytotoxic effect, 5′-NIO exhibited a dose-dependent inhibitory effect on the invasion and migration of SGT cells. Furthermore, 5′-NIO suppressed the mRNA and protein expression of β1 integrin and MMP-2 and MMP-9.</P><B>Conclusion.</B><P>Taken together, these results suggest that 5′-NIO, even at low concentrations, may effectively inhibit the invasion and migration of SGT cells by suppressing β1 integrin–mediated signaling. © 2009 Wiley Periodicals, Inc. Head Neck, 2010</P>
Yoon, Hyung-Yoon,Kim, Seon-Kyu,Kim, Young-Won,Kang, Ho Won,Lee, Sang-Cheol,Ryu, Keun Ho,Shon, Ho Sun,Kim, Wun-Jae,Kim, Yong-June Mary Ann Liebert, Inc 2012 Journal of biomolecular screening Vol.17 No.7
<P>A total of 149 human prostate tissues obtained from our institute were assessed: 52 specimens of benign prostate hyperplasia (BPH) and 97 specimens of prostate cancer (PCa). The methylation status of the genes of Adenomatous polyposis coli (APC) and glutathione-S-transferase-P1 (GSTP1) was analyzed by quantitative pyrosequencing. A methylation score (M score) was calculated to capture the combined methylation level of both genes. The methylation level of each single gene and that of both genes combined was significantly higher in PCa specimens than in BPH (each p < 0.001). The value of APC methylation, GSTP1 methylation, and M score for predicting PCa was measured by the area under the receiver operating characteristic (ROC) curve and reached 0.954, 0.942, and 0.983, respectively. The sensitivity and specificity of the M score in discriminating between PCa and BPH reached 92.8% and 100.0%, respectively. The M score was positively associated with the serum prostate-specific antigen (PSA) level (p trend < 0.001). Our study demonstrates that the quantitative measurement of two methylation markers might drastically improve the ability to discriminate PCa from BPH.</P>
Optimized phase noise of LC VCO using an asymmetric-inductance tank in InGaP/GaAs HBT technology
Yoon, Jae-Ho,Lee, Sang-Hun,Koh, Ah-Rah,Kennedy, Gary P.,Kim, Nam-Young Wiley Subscription Services, Inc., A Wiley Company 2006 MICROWAVE AND OPTICAL TECHNOLOGY LETTERS - Vol.48 No.6
<P>This paper describes fully integrated low-phase-noise MMIC voltage-controlled oscillators (VCOs) for an adaptive-feedback interference-cancellation system (AF-ICS). The asymmetric- and symmetric-inductance tank structures were combined with VCOs to obtain VCOs with low-phase-noise performance. The asymmetric-inductance tank VCO (AIT-VCO) has a tuning range of 261 MHz with an output power of −11.53 dBm at 1.715 GHz. Furthermore, the phase noise of this VCO is −117.3 dBc/Hz and −129.3 dBc/Hz at 100-kHz and 1-MHz offset frequencies, respectively. The symmetric-inductance tank VCO (SIT-VCO) has a tuning range of 160 MHz with an output power of −15 dBm at 1.664 GHz. Furthermore, the phase noise of this VCO is −102.4 dBc/Hz and −121.9 dBc/Hz at 100-kHz and 1-MHz offset frequencies, respectively. Each of these VCOs occupies a total chip area of 0.9 × 0.9 mm<SUP>2</SUP>. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1035–1040, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21593</P>