• Title/Summary/Keyword: ET

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[ $Intersexualit{\acute{e}}$ ] Et La Mode En Occident

  • Bang Soo-Ran
    • International Journal of Costume and Fashion
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    • v.5 no.2
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    • pp.11-27
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    • 2005
  • La demarche et l'objet de cette recherche sont d'analyser, psychiquement, biologiquement, les marques de l'intersexualite presentent en Occident et les elements intersexuels, binaires dans le vetement, et egalement de comprendre l'ambiguite ou encore la fusion des identites sexuees. qui presente symboliquement a travers le vetement, dans la societe moderne. Malgre tous les points communs et differents, la base fondamentale dans les theories de I'Occident est que tout individu est psychiquement, biologiquement en quelque sorte un intersexuel qui s'ignore, avec des variations selon l'individu. En definitive, les compositions doubles des elements dans le vetement occidental montraient emblematiquement nos qualites doubles, masculins et feminins, et les trois elements semblent primordiaux pour l'elucidation de la predisposition du porteur : la couleur du tissu, sa texture et la forme du vetement. La mode d'aujourd'hui bascule entre masculin et feminin. Cette fusion de la mode semble le reflet d'une tendance intersexuelle et d'une fusion du genre.

Plasma and Urine Endothelin Concentrations in Patients with Diffuse Interstitial Lung Disease (미만성간질성폐질환 환자에서 혈장 및 요 중 Endothelin에 관한 연구)

  • Lee, Jong-Deog;Lee, Sang-Do;Lim, Chae-Man;Koh, Youn-Suck;Kim, Woo-Sung;Kim, Dong-Soon;Kim, Won-Dong
    • Tuberculosis and Respiratory Diseases
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    • v.45 no.2
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    • pp.360-368
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    • 1998
  • Background: Endothelin(ET), a potent vasoconstrictor peptide produced by endothelial cells and degraded predominantly in the pulmonary vasculature, have been implicated in the development of various organ dysfunctions. Plasma concentrations of ET-1 are reported to be elevated in patients with diffuse interstitial lung disease(DILD). But, there is no study to establish the exact source and mechanisms involved in the increased plasma ET-1 concentrations in DILD patients. Methods: 12 patients with IPF, 2 patients with sarcoidosis, 2 patients with scleroderma, 1 patient with SLE and 11 healthy volunteers were studied. ET was detected by radioimmunoassay in plasma and bronchoalveolar lavage fluid(BALF) as well as in 24-hr urine specimens. For each subjects, arterial/venous(A/V) ET ratio and renal ET clearance were calculated. Results: Elevated plasma, urine and BALF ET concentrations were found in patients with DILD compared with controls. But, no significant difference was observed in ET A/V ratio and ET renal clearance between patients with DILD and controls. Conclusion: We observed that plasma ET concentrations were elevated in patients with DILD, and that the main site of ET production may be lung parenchyme.

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Alkali-Metal Ion Catalysis in Alkaline Ethanolysis of 2-Pyridyl Benzoate and Benzyl 2-Pyridyl Carbonate: Effect of Modification of Nonleaving Group from Benzoyl to Benzyloxycarbonyl

  • Um, Ik-Hwan;Kang, Ji-Sun;Kim, Chae-Won;Lee, Jae-In
    • Bulletin of the Korean Chemical Society
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    • v.33 no.2
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    • pp.519-523
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    • 2012
  • A kinetic study is reported on nucleophilic displacement reactions of benzyl 2-pyridyl carbonate 6 with alkalimetal ethoxides, EtOM (M = Li, Na, and K), in anhydrous ethanol at $25.0{\pm}0.1^{\circ}C$. The plots of pseudo-firstorder rate constant $k_{obsd}$ vs. [EtOM] curve upward, a typical phenomenon reported previously for alkaline ethanolysis of esters in which alkali-metal ions behave as a Lewis-acid catalyst. The kobsd value for the reaction of 6 with a fixed EtOK concentration decreases rapidly upon addition of 18-crown-6-ether (18C6), a complexing agent for $K^+$ ion up to [18C6]/[EtOK] = 1.0 and then remains constant thereafter, indicating that the catalytic effect exerted by K+ ion disappears in the presence of excess 18C6. The reactivity of EtOM towards 6 increases in the order $EtO^-$ < EtOLi < EtONa < EtOK, which is contrasting to the reactivity order reported for the corresponding reactions of 2-pyridyl benzoate 4, i.e., $EtO^-$ < EtOK < EtONa < EtOLi. Besides, 6 is 1.7 and 3.5 times more reactive than 4 towards dissociated $EtO^-$ and ion-paired EtOK, respectively. The reactivity difference and the contrasting metal-ion selectivity are discussed in terms of electronic effects and transition-state structures.

Activation of p38 MAPK Is Involved in Endothelin-1-stimulated COX-2 Expression in Cultured Feline Esophageal Smooth Muscle Cells

  • Song, Hyun Ju;Min, Young Sil;Shin, Chang Yell;Jeong, Ji Hoon;Sohn, Uy Dong
    • Molecules and Cells
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    • v.22 no.1
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    • pp.44-50
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    • 2006
  • We investigated the possible role of p38 MAPK and $ET_B$ receptors in ET-1 induction of cyclooxygenase-2 (COX-2) and prostaglandin $E_2$ ($PGE_2$) in cultured feline esophageal smooth muscle cells (ESMC). Confluent layers of ESMC were stimulated with 10 nM ET-1 and expression of COX-1 and COX-2, involvement of receptors, and activation of p38 MAPK, were examined by Western blot analysis. Levels of $PGE_2$ induced by ET-1 were measured by Elisa. Using $ET_A$and $ET_B$ antagonists (BQ-123 and BQ-788, respectively), the contribution of the ET receptors to COX-1 and COX-2 expression induced by ET-1 was determined. Western blot analysis revealed that treatment of ESMC with ET-1 resulted in transient expression of COX-2 and activation of p38 MAPK. Activation of p38 MAPK was maximal after 1 h. SB202190, a p38 MAPK inhibitor, reduced expression of COX-2, but not COX-1. ET-1-induced release of $PGE_2$ was also blocked by SB202190. COX-2 expression was upregulated only via the $ET_B$ receptor, and COX-1 expression was not affected by either antagonist. Taken together, our data suggest that ET-1 causes p38 MAPK-dependent expression of COX-2 by interacting with $ET_B$ receptors on ESMC.

L'etude du Costume Liturgique (그리스도교의 전례복에 관한 연구)

  • 오춘자
    • Journal of the Korean Home Economics Association
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    • v.12 no.34
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    • pp.743-769
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    • 1974
  • Au debut I'habit Iiturgique ne differait de I'habit de fete du simple citoyen que par sa richesse. C'est seulement quand, dans la vie courante, on adopta la robe courte que le vetememt liturgique commenca a se distinguer, meme par la forme, du costume civil. Les ornements liturgiques, en effet, ne sont qu'une forme stylisee de l'habit de fete de la fin de l'Empire Romain (du IIIeme au Veme siecle). Pour une ceremonie religieuse on se presente bien habille. Le meme sentiment de respect des choses sacrees a amene deja, vers la fin de l'antiquite chretienne, a donner au pretre un vetememt liturgique special. Pour celebrer la messe, le pretre revet par-dessus sa soutane un costume special, compose de l'amict, de l'aube, du cordon, du manipule, de l'etole et de la chasuble. Aux messes solennelles, les eveques ajoutent a ces ornements des bas et sandales, des gants, la tunique et la dalmatique avee la mitre ; en certain cas, les archeveques y joingnent le pallium. Aux messes solennelles, le diacre porte sur ; l'aube le manipule et la tunique. De ces pieces du costume liturgique, on dira brievement, apres leur emploi et leur forme actel, l'origine et l'histoire, mais seulement apres avoir marque les lignes generales parition et des transformations du costume liturgique dans son ensemble. L'evolution du costume liturgique a partir du XIIIeme siecle peut se resumer en quelques mots en raison souvent de la lourdeur des riches etoffes (velours et brocarts) et de l'importance donne a la decoration, toujours par rechereche d'une plus grande commodite on a abandonne lentement d'abord, puis rapidement adapte a partir du XVI eme siecle, les formes amples pour des formes courtes et etriquees. Il faut faire quelques exceptions qui marquent l'influence des gouts decoratifs de gouts epoque : La periode de 1700 a 1850 marque la complete decadence du costum liturgique. On a depuis essaye de lui rendre sa beaute et aussi sa signification symbolique, par un retour aux etoffes et a la decoration de la deuxieme partie du moyen age. Souhations que, sous la direction des liturgistes, en respectant l'essentiel de la liturgie aujourd'hui, avec le concours d'artistes epris du sens liturgique et des connaisseurs des tradtions et de toutes les ressources actuelles on trouve des costumes liturgiques adaptes a notre temps dans un style plus simple et correspondant au besoins actuels.

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Endothelin Receptor Overexpression Alters Diastolic Function in Cultured Rat Ventricular Myocytes

  • Kang, Mi-Suk;Walker, Jeffery W.;Chung, Ka-Young
    • Biomolecules & Therapeutics
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    • v.20 no.4
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    • pp.386-392
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    • 2012
  • The endothelin (ET) signaling pathway controls many physiological processes in myocardium and often becomes upregulated in heart diseases. The aim of the present study was to investigate the effects of ET receptor upregulation on the contractile function of adult ventricular myocytes. Primary cultured adult rat ventricular myocytes were used as a model system of ET receptor overexpression in the heart. Endothelin receptor type A ($ET_A$) or type B ($ET_B$) was overexpressed by Adenoviral infection, and the twitch responses of infected ventricular myocytes were measured after ET-1 stimulation. Overexpression of $ET_A$ exaggerated positive inotropic effect (PIE) and diastolic shortening of ET-1, and induced a new twitch response including twitch broadening. On the contrary, overexpression of $ET_B$ increased PIE of ET-1, but did not affect other two twitch responses. Control myocytes expressing endogenous receptors showed a parallel increase in twitch amplitude and systolic $Ca^{2+}$ in response to ET-1. However, intracellular $Ca^{2+}$ did not change in proportion to the changes in contractility in myocytes overexpressing $ET_A$. Overexpression of $ET_A$ enhanced both systolic and diastolic contractility without parallel changes in $Ca^{2+}$. Differential regulation of this nature indicates that upregulation of $ET_A$ may contribute to diastolic myocardial dysfunction by selectively targeting myofilament proteins that regulate resting cell length, twitch duration and responsiveness to prevailing $Ca^{2+}$.

A drought assessment using the generalized complementary principle of evapotranspiration (증발산 상호보완이론을 이용한 가뭄해석)

  • Chun, Jong Ahn;Kim, Daeha
    • Journal of Korea Water Resources Association
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    • v.52 no.5
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    • pp.325-335
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    • 2019
  • To characterize historical droughts in the conterminous United States (CONUS), we estimated the actual evapotranspiration ($ET_a$) in the CONUS using the generalized complementary relationship (GCR) for 1895-2016. The $ET_a$ estimates were compared against simulations from the Noah land surface model (LSM). In this study, the evapotranspiration (ET) deficit defined as the difference between the wet-environment ET ($ET_w$) and $ET_a$ was then normalized to calculate the Standardized Evapotranspiration Deficit Index (SEDI) across the CONUS for the years 1895-2016. The SEDI was compared to the Standard Precipitation Index (SPI) at various time scales. The results showed that the GCR $ET_a$ was slightly higher than the Noah LSM-simualted $ET_a$. As time scales increased, the correlation between the SEDI and the SPI was higher. This study suggests that the GCR has promise as a tool in the estimation of $ET_a$ and SEDI can be useful for the drought characterization.

Alkali Metal Ion Catalysis and Inhibition in Nucleophilic Substitution Reactions of 3,4-Dinitrophenyl Diphenylphosphinothioate with Alkali Metal Ethoxides in Anhydrous Ethanol: Effect of Changing Electrophilic Center from P=O to P=S

  • An, Jun-Sung;NamKoong, Gil;Kang, Ji-Sun;Um, Ik-Hwan
    • Bulletin of the Korean Chemical Society
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    • v.32 no.7
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    • pp.2423-2427
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    • 2011
  • Pseudo-first-order rate constants ($k_{obsd}$) have been measured spectrophotometrically for nucleophilic substitution reactions of 3,4-dinitrophenyl diphenylphosphinothioate 9 with alkali metal ethoxides (EtOM, M = Li, Na, K) in anhydrous ethanol at $25.0{\pm}0.1^{\circ}C$. The plot of $k_{obsd}$ vs. [EtOM] is linear for the reaction of 9 with EtOK. However, the plot curves downwardly for those with EtOLi and EtONa while it curves upwardly for the one with EtOK in the presence of 18-crown-6-ether (18C6). Dissection of $k_{obsd}$ into $k_{EtO^-}$ and $k_{EtOM}$ (i.e., the second-order rate constant for the reaction with dissociated $EtO^-$ and ion-paired EtOM, respectively) has revealed that the reactivity increases in the order $k_{EtOLi}$ < $k_{EtONa}$ < $k_{EtO^-}$ ${\approx}$ $k_{EtOK}$ < $k_{EtOK/18C6}$, indicating that the reaction is inhibited by $Li^+$ and $Na^+$ ions but is catalyzed by 18C6-crowned $K^+$ ion. The reactivity order found for the reactions of 9 contrasts to that reported previously for the corresponding reactions of 1, i.e., $k_{EtOLi}$ > $k_{EtONa}$ > $E_{EtOK}$ > $k_{EtO^-}$ ${\approx}$ $k_{EtOK/18C6}$, indicating that the effect of changing the electrophilic center from P=O to P=S on the role of $M^+$ ions is significant. A four-membered cyclic transition-state has been proposed to account for the $M^+$ ion effects found in this study, e.g., the polarizable sulfur atom of the P=S bond in 9 interacts strongly with the soft 18C6-crowned $K^+$ ion while it interacts weakly with the hard $Li^+$ and $Na^+$ ions.

Estimation of Spatial Evapotranspiration using the Relationship between MODIS NDVI and Morton ET - For Chungjudam Watershed - (MODIS NDVI와 Morton 증발산량의 관계를 이용한 공간증발산량 산정 기법 연구 - 충주댐유역을 대상으로 -)

  • Shin, Hyung-Jin;Ha, Rim;Park, Min-Ji;Kim, Seong-Joon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.52 no.1
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    • pp.19-24
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    • 2010
  • The purpose of this study is to estimate monthly Morton evapotranspiration (ET) using normalized difference vegetation index (NDVI) from MODIS satellite images. Morton ET for land surface conditions was evaluated by using daily meteorological data, and the monthly averaged Morton ETs for each land cover were compared with the monthly NDVIs of three years (2000-2002) at Chungjudam Watershed. There was a high correlation between monthly NDVI and Morton ET for the watershed with average coefficient of determination, 0.80. By comparing the MODIS NDVI ET with SLURP Morton ET, the SLURP ET was smaller than the MODIS NDVI ET. This was estimated from the consideration of soil moisture condition for the ET occurrence in the SLURP model, the limited information from the monthly NDVI values, and the errors from the derived regression equations.

Studies on the Vegetation of the Salt Marsh in the Southwestern Cost of Korea (한국 서남해안 간석지 식생에 관한 연구)

  • Kim, Chul-Soo;Ihm, Byung-Sun
    • The Korean Journal of Ecology
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    • v.11 no.4
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    • pp.175-192
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    • 1988
  • The coastal vegetation of the southwestern coast of Korea was surveyed by the Braun-Blnquet's phytosociological sKDICe and its soil properties were also determined. Comparing with the coastal vegetation of Korea, Japan and Europe, the vegetation of this area could be classified into as follows; A. Thero-Salicornietea R. Tx. 1954(Salicor-nietum herbaceae assoc. nov.). B. Thero-Suaedetea Rivas Martwez 1979 (Suaedetum japonicae Miyawaki et Ohba 1966, Suaeda maritima commuity, Atriplici-Suaedetum maritimi Miyawaki et Ohba 1965, Suaeda asparagoided community) C. Asteretea tripolium Westhoff et Beeftink 1962 (Zoysietum sinice Ohba, Miyawaki et Tx. 1973, Limonietum tetragoni Miyawaki et Ohba 1969, Artemisietum scopariae assoc. nov., Aster tripolium community, Atriplex, gmelini community) D. Phragmitetea Tx. et Prsg. 1942 (Triglochietum maritimae assoc. nov., Carcetum scabrifoliae Miyawaki et Ohba 1969, phragmites communis community, Pyaceluretum latifolii Miyawaki et Okuda 1972, Scirpus fluviatilis community) E. Salsoletea komarovil Ohba, Miyawaki et Tx. 1973(Salsola komarovi community) F. Glehnietea littoralis ohba, Miyawaki et Tx. 1973(Caricetum pumilae assoc. nov., Meserschmidia sibirica community, Lysimachia mauri-tiana community Ishaemum anthephoroides community, Elymus mollis commuity, carex kobomugi community, Ixeris repens community) G. Viticetea rotundifoliae Ohba, Miyawaki et Tx. 1973 (Imperato cylindricae-Viticetum rotundifoliae ohba, Miyawaki ex Tx. 1973) and Opuntia ficus-indica var. saboten community. Among the soil properties, water potential seems to be one fo the most important factor on the distribution of the coastal plant community and it might be highly affected by water content in sand and salinity in low marsh.

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