[CE-0002] Genotype study for heading date using GWAS and genomic selection in wheat core-set

Changhyun Choi(Changhyun Choi),Myoung Hui Lee(Myoung Hui Lee),Urim Kim(Urim Kim),Jin-Kyung Cha(Jin-Kyung Cha),Kyeong-Min Kim(Kyeong-Min Kim),Chon-Sik Kang(Chon-Sik Kang),Jiyoung Son(Jiyoung Son),Jong- 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

The Effect of Gender Sensitivity for Self-Esteem and Protection and Convergence on Appearance Recognition Behavior of Women in Their 20s

Jungsoon Choi(Jungsoon Choi),Inseog Jo(Inseog Jo),Jiyoung Seo(Jiyoung Seo) J-INSTITUTE 2023 Protection Convergence Vol.8 No.1

Purpose: Unlike in the past, the modern women have destroyed the frame of stereotypes that women must be feminine and men must be masculine through their own arguments and active actions. This has resulted in changes in the women’s self-esteem as their independent tendencies have strengthened due to changes in ste-reotypes about their roles and the women's advancement into society. The purpose of this study is to examine the effect of self-esteem and gender sensitivity on the appearance recognition behavior of women in their 20s. Method: The questionnaire items for scale development of the study were used for the women in their 20s for empirical research. The composition of the questionnaire consisted of self-esteem, gender sensitivity, appearance recognition behavior, and demographic variables. A stepwise multiple regression analysis was conducted to in-vestigate the relationship between demographic variables, self-esteem, gender sensitivity, and appearance recognition behavior. Results: First, as a result of analyzing the effect of self-esteem on gender sensitivity, it turned out that positive self-esteem had a positively significant effect on gender sensitivity, and negative self-esteem had a negatively significant effect on gender sensitivity. Second, as a result of analyzing the effect of gender sensitivity on the appearance stereotypes, it turned out that gender positive attitude had a positively significant effect on the appearance stereotypes, and gender sen-sitivity also had a positively significant effect on the appearance stereotypes. Third, it turned out that gender sensitivity has a mediating effect when the positive self-esteem affects ap-pearance evaluation and respect for appearance, and the negative self-esteem affects appearance evaluation and appearance stereotypes. Conclusion: It is considered that the research on the direction of the beauty industry and between the classes that become direct consumers must be conducted in various ways because the gender sensitivity that women have as a human being can bring about changes in appearance recognition behavior, thereby breaking away from stereotypes about gender. It is hoped that this study will help understand the gender sensitivity of women in their 20s and contribute to the development of the beauty industry.

The Effect of Job Satisfaction of the Beauty Service Providers on the Goal Orientation for Public Value

Jungsoon Choi(Jungsoon Choi),Inseog Jo(Inseog Jo),Jiyoung Seo(Jiyoung Seo) J-INSTITUTE 2022 Public Value Vol.7 No.2

Purpose: The purpose of this study is to examine and understand the effect of job satisfaction of the beauty service providers, which is highly dependent on human resources such as technology and services, on the goal orientation for public value. Method: The questionnaire method was used for women in their 20s and 50s. The questionnaire was consisted of job satisfaction, goal orientedness, and demographic variables. Frequency, percentage, and average were calculated, and to learn about the relationship between job satisfaction and goal oriented-ness, the multiple regression analysis was performed. Results: In terms of the effect of job satisfaction on learning avoidance among the goal orientations, only the salary satisfaction variable turned out to have a statistically significant negative(-) effect. In [Model 1], in terms of the effect of job satisfaction on performance approach and learning approach among the goal orientations, only the job satisfaction variable turned out to have a statistically significant positive(+) effect. In [Model 2], it turned out that the job satisfaction variable and the boss satisfaction variable had a statistically significant pos-itive(+) effect. Conclusion: For the job satisfaction of beauty service providers, it will be necessary to improve the job envi-ronment and job conditions. Accordingly, it is expected that this study will serve as the basic data for understand-ing the improvement of the work environment of beauty service providers and also be used as the marketing data for beauty servicemen who are aiming for a goal.

Synthesis and Electro-optical Properties of π-Conjugated Polymer Based on 10-Hexylphenothiazine and Aromatic 1,2,4-Triazole

Jiyoung Choi,Donghan Kim,Bong Lee,Joo Hyun Kim 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.9

New π-conjugated polymer with vinylene linkage, poly((10-hexyl-3,7-phenothiazine)-alt-(4-(4-butyl-phenyl)- 3,5-diphenyl-4H-[1,2,4]triazole)-3,5-vinylene) (PTV-TAZ) was synthesized by the Heck coupling reaction. The photoluminescence (PL) maximum wavelength and the band gap energy of PTV-TAZ film were 555 nm and 2.41 eV, respectively. The HOMO energy level of PTV-TAZ was -4.99 eV, which was slightly lower than that of PTV (-4.89 eV). Electron deficient aromatic 1,2,4-triazole (TAZ) in the polymer backbone does not affect the HOMO energy level significantly. The maximum efficiency and brightness of double layer structured electroluminescent (EL) device (ITO/PEDOT (30 nm)/PTV-TAZ (60 nm)/Al) were 0.247 cd/A and 553 cd/m2, respectively, which were significantly higher than those of the device based PTV (1.65 × 10-4 cd/A and 4.3 cd/m2). This is due to that TAZ unit improves electron transporting ability in the emissive layer. The turn-on voltage (defined as the voltage required to give a luminescence of 1 cd/m2) of brightness of the device based on PTV-TAZ was 12.0 V, which was similar to that the based on PTV (11.5 V). This is due to that the ionization potential of PTV-TAZ is very similar to that of PTV.

Effects of Body Postures on Clothing Air Gap in a Protective Suit

( Jiyoung Choi ),( Heejin Kim ),( Yunja Nam ),( Min K. Chung ),( Hyunsook Jung ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-

Air gaps entrapped in a protective suit play an important role in heat transfer, and it is closely related to the wearer`s safety. The distribution and size of the air gaps depends on body motions. In this study 8 representative body motions (stretching, walking, crawling, crouching, twisting, climbing and reaching, moving weights, and lateral bending) of CBR excercise and 2~4 body postures per each motion were derived. After that, for one male participant, theses postures were scanned with a 3D body scanning technique. Scanning was performed for the nude and the dressed to measure the distribution and size of air gaps between the human body and clothing. As a result, the air gaps varied with the different postures. The results will be basic data to improve the protective performance of current protective suit.

Hamamelis virginiana Extract Protects from PM<SUB>2.5</SUB>-induced Inflammation via PAR-2 Signaling

Jiyoung CHOI,Gi-Yeon HAN,Dongki YANG,Joonseok CHA 한국생물공학회 2021 한국생물공학회 학술대회 Vol.2021 No.10

Dietary supplements and personal care products to protect from air pollution have been of great interest for decades. Epidemiology demonstrated that particulate matters (PM10 and PM2.5) are an actual threat to public health worldwide, but the detailed processes that these particles attack the cells are not fully understood. Here, we report that measuring intracellular calcium concentration ([Ca<SUP>2+</SUP>]i) in human respiratory or skin cells can illustrate pollutant challenges by triggering Ca<SUP>2+</SUP> influx in these cells. This signal was generated by protease-activated receptor-2 (PAR-2), confirmed by competition analyses, and the extract of Hamamelis virginiana (HVE), a native herb of North America, was able to control the calcium response and the expression of PAR-2. The increase of nuclear factor-kappa B (NF-κB), and the decrease of cell adhesion components could address severe damage status by air pollutants and the protection by HVE. Also, it was confirmed that HVE effectively inhibited ROS induced by UVB. The results presented here should help understand the underlying mechanism of PM insults and the beneficial effect of standardized HVE as a dietary supplement or cosmetical ingredient.

Mercury intrusion porosimetry characterization of micropore structures of high-strength cement pastes incorporating high volume ground granulated blast-furnace slag

Choi, Young Cheol,Kim, Jiyoung,Choi, Seongcheol Elsevier 2017 Construction & building materials Vol.137 No.-

<P><B>Abstract</B></P> <P>In this study, we characterized the micropore structures of high-strength cement pastes incorporating high volume ground granulated blast-furnace slag (GGBFS). Using mercury intrusion porosimetry, we measured the pore-size distributions of cement pastes with different GGBFS replacement ratios at ages of 3, 7, 28, and 91d. The test results indicated that the total porosity increased with increasing GGBFS ratio in the specimens at early ages, whereas it decreased at later ages. The replacement ratio of 65% produced the densest pore structure, which was consistent with compressive strength test results.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We experimentally characterized the microstructures of high volume GGBFS-blended high-strength cement pastes. </LI> <LI> The total porosity increased over the GGBFS ratios in the specimens at early ages. </LI> <LI> The total porosity decreased over the GGBFS ratios in the specimens at later ages. </LI> <LI> A GGBFS replacement ratio of 65% produced the densest pore structures. </LI> </UL> </P>

Synchronous Cancers of Hepatic Angiosarcoma and Gallbladder Adenocarcinoma, Mimicking Gallbladder Cancer with Hepatic Invasion: a Case Report

Choi, Jiyoung,Kim, Hyuk Jung,Jang, Suk Ki,Paik, So Ya,Kim, Ki Ho Korean Society of Magnetic Resonance in Medicine 2020 Investigative Magnetic Resonance Imaging Vol.24 No.2

Synchronous primary cancers in the liver and gallbladder have been rarely reported. We report a case of synchronous cancers of hepatic angiosarcoma and gallbladder adenocarcinoma, mimicking gallbladder cancer with hepatic invasion. Additionally, the clinical implications, the radiologic features, and the diagnostic difficulties are further discussed.

Technical Feasibility of Quantitative Measurement of Various Degrees of Small Bowel Motility Using Cine Magnetic Resonance Imaging

Choi Ji Young,Yun Jihye,Heo Subin,Kim Dong Wook,Choi Sang Hyun,Yoon Jiyoung,Kim Kyuwon,Jung Kee Wook,Myung Seung-Jae 대한영상의학회 2023 Korean Journal of Radiology Vol.24 No.11

Objective: Cine magnetic resonance imaging (MRI) has emerged as a noninvasive method to quantitatively assess bowel motility. However, its accuracy in measuring various degrees of small bowel motility has not been extensively evaluated. We aimed to draw a quantitative small bowel motility score from cine MRI and evaluate its performance in a population with varying degrees of small bowel motility. Materials and Methods: A total of 174 participants (28.5 ± 7.6 years; 135 males) underwent a 22-second-long cine MRI sequence (2-dimensional balanced turbo-field echo; 0.5 seconds per image) approximately 5 minutes after being intravenously administered 10 mg of scopolamine-N-butyl bromide to deliberately create diverse degrees of small bowel motility. In a manually segmented area of the small bowel, motility was automatically quantified using a nonrigid registration and calculated as a quantitative motility score. The mean value (MV) of motility grades visually assessed by two radiologists was used as a reference standard. The quantitative motility score’s correlation (Spearman’s ρ) with the reference standard and performance (area under the receiver operating characteristics curve [AUROC], sensitivity, and specificity) for diagnosing adynamic small bowel (MV of 1) were evaluated. Results: For the MV of the quantitative motility scores at grades 1, 1.5, 2, 2.5, and 3, the mean ± standard deviation values were 0.019 ± 0.003, 0.027 ± 0.010, 0.033 ± 0.008, 0.032 ± 0.009, and 0.043 ± 0.013, respectively. There was a significant positive correlation between the quantitative motility score and the MV (ρ = 0.531, P < 0.001). The AUROC value for diagnosing a MV of 1 (i.e., adynamic small bowel) was 0.953 (95% confidence interval, 0.923–0.984). Moreover, the optimal cutoff for the quantitative motility score was 0.024, with a sensitivity of 100% (15/15) and specificity of 89.9% (143/159). Conclusion: The quantitative motility score calculated from a cine MRI enables diagnosis of an adynamic small bowel, and potentially discerns various degrees of bowel motility.

PPARγ Antagonist Gleevec Improves Insulin Sensitivity and Promotes the Browning of White Adipose Tissue

Choi, Sun-Sil,Kim, Eun-Sun,Jung, Ji-Eun,Marciano, David P.,Jo, Ala,Koo, Ja Young,Choi, Soo Youn,Yang, Yong Ryoul,Jang, Hyun-Jun,Kim, Eung-Kyun,Park, Jiyoung,Kwon, Hyug Moo,Lee, In Hee,Park, Seung Bum American Diabetes Association 2016 Diabetes Vol.65 No.4

<P>Blocking phosphorylation of peroxisome proliferator–activated receptor (PPAR)γ at Ser<SUP>273</SUP> is one of the key mechanisms for antidiabetes drugs to target PPARγ. Using high-throughput phosphorylation screening, we here describe that Gleevec blocks cyclin-dependent kinase 5–mediated PPARγ phosphorylation devoid of classical agonism as a PPARγ antagonist ligand. In high fat–fed mice, Gleevec improved insulin sensitivity without causing severe side effects associated with other PPARγ-targeting drugs. Furthermore, Gleevec reduces lipogenic and gluconeogenic gene expression in liver and ameliorates inflammation in adipose tissues. Interestingly, Gleevec increases browning of white adipose tissue and energy expenditure. Taken together, the results indicate that Gleevec exhibits greater beneficial effects on both glucose/lipid metabolism and energy homeostasis by blocking PPARγ phosphorylation. These data illustrate that Gleevec could be a novel therapeutic agent for use in insulin resistance and type 2 diabetes.</P>