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Jin, Yong‐,Mei,Jung, Jinwook,Jeon, Hyesung,Won, So Youn,Feng, Yue,Kang, Jae‐,Sook,Lee, Sang Yeol,Cheong, Jong‐,Joo,Koiwa, Hisashi,Kim, Minkyun Blackwell Publishing Ltd 2011 The New phytologist Vol.190 No.1
<P><B>Summary</B></P><P><P>Arabidopsis RNA polymerase II (RNAPII) C‐terminal domain (CTD) phosphatases regulate stress‐responsive gene expression and plant development via the dephosphorylation of serine (Ser) residues of the CTD. Some of these phosphatases (CTD phosphatase‐like 1 (CPL1) to CPL3) negatively regulate ABA and stress responses. Here, we isolated <I>AtCPL5</I>, a cDNA encoding a protein containing two CTD phosphatase domains (CPDs).</P><P>To characterize AtCPL5, we analyzed the gene expression patterns and subcellular protein localization, investigated various phenotypes of <I>AtCPL5</I>‐overexpressors and knockout mutants involved in ABA and drought responses, performed microarray and RNA hybridization analyses using <I>AtCPL5</I>‐overexpressors, and assessed the CTD phosphatase activities of the purified AtCPL5 and each CPD of the protein.</P><P>Transcripts of the nucleus‐localized AtCPL5 were induced by ABA and drought. <I>AtCPL5</I>‐overexpressors exhibited ABA‐hypersensitive phenotypes (increased inhibition of seed germination, seedling growth, and stomatal aperture), lower transpiration rates upon dehydration, and enhanced drought tolerance, while the knockout mutants showed weak ABA hyposensitivity. <I>AtCPL5</I> overexpression changed the expression of numerous genes, including those involved in ABA‐mediated responses. In contrast to Ser‐5‐specific phosphatase activity of the negative stress response regulators, purified AtCPL5 and each CPD of the protein specifically dephosphorylated Ser‐2 in RNAPII CTD.</P><P>We conclude that AtCPL5 is a unique CPL family protein that positively regulates ABA‐mediated development and drought responses in Arabidopsis.</P></P>
Jin Yong,Wang Zhilin,Zhang Zhenxin,Lin Bo,Ge Zhengjun,You Qidong,Chen Hao,Liu Xiliang,Xu Chenghao,Gao Shuaiqiang,Wu Yi,Abro Zafar 한국자원공학회 2023 Geosystem engineering Vol.26 No.4
CO2 flooding is a significant technology for oil recovery, to reveal the microcosmic mechanism of CO2 flooding, CO2 slim tube experiments, long core CO2 flooding experiments, gas chromatography analysis experiments, and numerical simulations were carried out. The results show that the miscibility increase can improve the effect of dissolution and diffusion in the CO2-crude oil system, easing the CO2 finger entry phenomena, and delaying gas breakthrough time. Besides, the CO2 -crude oil interaction is enhanced by increasing the pressure difference between the injection well and the production well, which improves the oil recovery of CO2 flooding. Besides, CO2 carries the light and medium components (C4 ~ 25) forward to cross the first miscible zone, which makes the CO2-crude oil system form double miscible zones. This study reveals the rule of CO2 front and light components front under different miscibility degrees of CO2 flooding from the microscopic perspective and deepens the theory of CO2 flooding in low-permeability sandstone reservoirs.
Jin, Yong,Jang, Jin-Wook,Lee, Mun-Han,Han, Chang-Hoon Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.10
Competitive direct ELISA was developed to detect gentamicin residues. Mice immunized with gentamicin-keyhole limpet hemocyanin (KLH) conjugate developed good antiserum titers, which gradually increased with booster injections, indicating immunization was successfully processed. Monoclonal antibody against gentamicin was prepared using hybridoma cells cloned by limit dilution of fused cells. IgG was purified from ascites fluid of hybridoma cell-injected mice through ammonium sulfate precipitation and Sephadex G-25 gel filtration. After the gel filtration, fractions of high antibody titer were further purified through affinity chromatography on protein A/G column. Monoclonal antibody against gentamicin was confirmed as IgG1, which has kappa light chain. Cross-reactivities ($CR_{50}$) of gentamicin monoclonal antibody to other aminoglycosides (kanamycin, neomycin, and streptomycin) were less than 0.005%, indicating the monoclonal antibody was highly specific for gentamicin. Standard curve constructed through competitive direct ELISA showed measurement range (from 80 to 20% of B/$B_0$ ratio) of gentamicin was between 1 and 40 ng/ml, and 50% of B/$B_0$ ratio was about 4 ng/ml. The gentamicin concentration rapidly increased to 1,300 ng/ml after the intramuscular administration up to 2 h, then sharply decreased to less than 300 ng/ml after 4 h of withdrawal, during which the elimination half-life ($t_{1/2}$) of gentamicin in the rabbit plasma was estimated to be 1.8 h. Competitive direct ELISA method developed in this study using the prepared monoclonal antibody is highly sensitive for gentamicin, and could be useful for detecting gentamicin residues in plasma of live animals.
사회적 불안이 해석수준과 중심부(vs. 주변부) 속성 강조 제품 만족도에 미치는 영향
고진용 ( Ko¸ Jin Yong ),여준상 ( Yeo¸ Jun Sang ) 한국소비자학회 2020 소비자학연구 Vol.31 No.6
일반적으로 불안은 주관적 감정으로 다가오는 어떤 사건에 대한 부정적 결과가 예측될 때 느끼는 구체적인 정서반응을 의미한다. 그동안 불안에 대한 연구는 주로 개인의 정서 이상 증상을 치료하기 위한 정신병리학적 접근이 주를 이뤘고 ‘불안’이 사회 속에서 소비자의 행동 변화를 예측하는 연구는 드물었다. 이 연구는 사회 속에서 개인이 느끼는 불안에 대한 개념을 우선 탐색하여, 일상적인 불안이 해석수준과 제품 속성 강조에 따라 만족도에 어떤 영향을 미칠 수 있는지를 탐구하는 것이 목표다. 실험1에서는 개인의 사회적 불안과 해석수준의 관계를 알아보았고 실험2에서는 지각된 사회적 불안이 제품 속성(중심부 vs. 주변부) 강조에 따른 만족도에 미치는 영향과 해석수준의 매개효과를 검증하였다. 실험1 결과, 측정된 개인의 사회적 불안이 높을수록 해석수준이 낮아지는 부적 관계가 확인되었다. 실험2에서는 중심부 속성을 강조한 제품 만족도에는 지각된 사회적 불안이 해석수준을 매개하는 간접효과가 유의미하였다. 주변부 속성을 강조한 경우에는 불안이 제품만족도에 직접효과를 미치는 것으로 나타났다. 본 연구의 시사점은 현대사회가 만들어 낸 불안이 해석수준과 특정 소비행동에 영향을 준다는 점을 밝힌 것이다. 따라서 이 연구는 최근의 일부 소비 트렌드가 불안, 또는 불안이 만들어 낸 낮은 해석수준의 영향이라는 설명을 제공할 수 있다. In general, anxiety refers to the specific emotional response by which a person feels when a negative outcome is predicted for an event to take place. However, researches on anxiety have mainly focused on psychopathological approaches to treat individual’s emotional disorders and there has been less interest in ‘anxiety’ as an indicator to predict consumers’ behavioral changes in the society. This research aims to figure out the effect of individual’s social anxiety on construal level and consumer preferences with the concept of anxiety that an individual feels in the society. In study 1, the relationship between individual's social anxiety and construal level was examined. In study 2, the effect of perceived social anxiety on the satisfaction for product attributes(emphasis on central attribute vs. peripheral attribute) and the mediating effect of construal level were examined. The result of study 1 shows the negative relationship between individual's social anxiety and constual level since construal level becomes lower when individual’s social anxiety is higher. Study 2 unveils that the indirect effect of peceived social anxiety on product satisfaction mediated by construal level is statistically significant for the product emphasizing on central attribute. In the case of emphasizing the peripheral attribute, anxiety shows only a direct effect on product satisfaction. Implication of this study is that anxiety in the modern society drives the low level construal which triggers the specific consumer behavior(e.g., preference for product emphasizing on peripheral attributes). So this research could provide the argument that some recent consumption trends might be caused by anxiety or lower construal level driven by precedented anxiety.
Jinyong Jung,Jaehun Cho,Hyeok-Cheol Choi,Kwang Hyun Lee,Chun-Yeol You,Sug-Bong Choe,June-Seo Kim 한국자기학회 2021 한국자기학회 학술연구발표회 논문개요집 Vol.31 No.1
We have systematically investigated magnetic sandwich structures of the Pd/Co/Pt and Pt/Co/Pd by performing an inelastic light scattering method. Two examined individual multilayer structures are identical, but the stacking order is inverted each other. The surface magnetic anisotropy energy densities of the Pd/Co/Pt structures are dramatically decreased up to 34 % compared with the Pt/Co/Pd structures, while the interfacial Dzyaloshinskii- Moriya energy density is being kept. Surprisingly, the Pd/Co/Pt structures show a sustainable interfacial Dzyaloshinskii-Moriya energy density and an extremely suppressed surface magnetic anisotropy that the magnetic domain wall energy is almost zero. Finally, we have shown a small range of cobalt thickness on Pd/Co/Pt structures that the magnetic domain wall energy density becomes negative. This observation can open a new way to form magnetic skyrmion phases at room temperature with zero bias magnetic field.
Jinyong Lee,Do Gwen Hwang,Jun Sang Yoo,Hyun Sook Lee 한국자기학회 2012 Journal of Magnetics Vol.17 No.2
We investigated the effects of pulsed magnetic fields (PMF) stimulus on electroencephalogram (EEG) alpha activity and heart rate variability (HRV) from electrocardiogram (ECG) measurements with various stimulus durations at acupoint PC9. The alpha activity in the EEG and the ratio of low frequency power and high frequency power (LHR) in the HRV, a reflection of sympathovagal activity, were increased and decreased, respectively, after PMF stimulus of 3 min. Our spectral analysis quantitatively proved that the changes in the EEG alpha activity were consistent with an autonomic function in the ECG. These findings suggest that appropriate PMF stimulus results in the same effect as that of acupuncture applied to the acupoint PC9, which is closely related to the parasympathetic activity of the autonomic nervous system.