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2015년도 이후 패션 컬렉션에 나타난 오버사이즈 룩의 의복구성 특성 분석
김경아,김경아 복식문화학회 2019 服飾文化硏究 Vol.27 No.5
Oversized fashion is again in the spotlight due to the influence of retro fashion. This has created new fashion trends with methods different from those of the past. This analysis examines recent trends by sorting these looks according to new and different methods of judging their appearance. A new categorization of the oversized look and its configurations has been created, one which separates “big” looks, partial changes, and layered looks. This research was based on historical review and previous studies. Three thousand one hundred thirty-six photos of oversized looks that have appeared in collections over the past five years were gathered, and their appearance was categorized according to type. The categorization results showed that big looks (55.1%) were most prevalent, followed by partial alterations (36.35%), and layered looks (8.45%). In comparison to prior oversized clothing production, new permutations of the “Big” look expanded the silhouettes of torso, shoulders, neckline and collar. Partial changes have expanded from the broadened shoulders of the 1980s. Today these styles expand the shoulders and armholes vertically or horizontally, which dramatically exaggerates the sleeves and collar. The layered look no longer simply features overlapping layers but takes the form of over-layering through cuts and insertions. Through such analysis it is clear that modern oversized looks break away from the simple expanded forms and production methods of the past. They now attempt to realize an exaggerated beauty of form regarding each clothing component and also maximize decorative effects through innovative drafting or sewing methods.
獼猴桃根이 腎臟의 Natriuretic Peptide 系에 미치는 影響
김경아,금경수,이시형,황우준,이호섭,유인식 한국전통의학연구소 2004 한국전통의학지 Vol.14 No.1
The present study was undertaken to evaluate the antagonistic effects of water extracts of Chinese gooseberry (Actinidia chinensis P.) root on the natriuretic peptide receptor system in the rat kidney. By using in vitro receptor autoradiography, specific 125I-atrial natriuretic peptide (125I-ANP) binding sites were localized in glomerulus, inner medulla, intrarenal artery, vasa recta bundle, and renal pelvis of Sprague Dawley rat kidney. These specific bindings were competitively displaced by water extracts of Chinese gooseberry root in a dose dependent manner. Also, productions of 3',5'-cyclic guanosine monophosphate (cGMP) by activation of particulate guanylyl cyclase (GC) were stimulated by ANP in the glomerular and inner medullary membranes from rat kidney. These cGMP productions were inhibited by water extracts of Chinese gooseberry root in a dose dependent manner. The inhibitory effect of water extracts of Chinese gooseberry root on activation of GC was more potent rather than on 125I-ANP bindings to these renal structures. From affinity cross-linking study, the water extracts of Chinese gooseberry root inhibited the 125I-ANP labeling of GC-coupled natriuretic peptide receptor from renal glomerulus. Intravenous infusion of ANP elicits a potent diuresis, and urinary sodium and chloride excretions in New Zealand White rabbit. The pre-treatment of intravenous water extracts of Chinese gooseberry root infusion decreased competitively various renal effects of ANP with out changes in systemic hemodynamics. These results indicate that the water extracts of Chinese gooseberry root specifically inhibits the GC-coupled natriuretic peptide receptor subtypes (NPR-A), and suggest that the water extracts of Chinese gooseberry root may contain an antagonistic molecule regulating the biological functions of ANP system in the kidney and other organs.
김경아,차재령,윤상우,공명선 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.5
Zinc oxide nanoparticles (ZnO NPs) were synthesized in 2-methoxyethanol without assistance of base, surfactant, template, etc., at relatively low temperature of 125 °C, by a single-step thermolysis. Thermolysis of Zn(IBC)2 led to the formation of almost pure ZnO NPs of various shapes. Transmission electron microscope (TEM) images showed that oleic acid–stabilized ZnO NPs with diameters of 10–20 nm were well dispersed in organic solvent. Resulting ZnO was characterized by UV–vis spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray powder diffraction, scanning electron microscopy, and high-resolution TEM. Room temperature photoluminescence (PL) spectra of ZnO NPs annealed at different temperatures showed different emission peaks in the range of 400–700 nm. The ZnO NPs prepared at 125 °C in air caused a further shift of the defect-related PL maximum toward the lower energy range (red-light emission) in comparison with the one prepared at 125 °C in 2-methoxyethanol.