• Title/Summary/Keyword: fen

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On the Equivalance of Some Fixed Point Iterations

  • Ozdemir, Murat;Akbulut, Sezgin
    • Kyungpook Mathematical Journal
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    • v.46 no.2
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    • pp.211-217
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    • 2006
  • In this paper, we have shown that the convergence of one-step, two-step and three-step iterations is equivalent, which are known as Mann, Ishikawa and Noor iteration procedures, for a special class of Lipschitzian operators defined in a closed, convex subset of an arbitrary Banach space.

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A Study on the Framework Schema of Jusimpo-Style Buddhist Halls of Goryeo Period (고려시대 주심포 불전의 가구형식에 관한 연구)

  • Kang, Sun-Hye;Yoon, Chae-Shin
    • Journal of architectural history
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    • v.25 no.6
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    • pp.7-16
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    • 2016
  • The purpose of this study is to find framework schema of early J usimpo-style Buddhist halls (Geungnakjeon Hall of Bongjeongsa Temple, Muryangsujeon Hall of Buseoksa Temple, and Daeungjeon Hall of Sudeoksa Temple). Though the halls are known as built in the late Goryeo Period, they show the influence of the architectural style of the early Unified Silla Period. To find the adopted modules and proportions of these halls, this study conceived a schematic diagram based on the whole frame structure taking reference from the Cai-Fen system in Yingzao Fashi. In these three halls, the heights of each cross-beam (Dori) are made up by the layers of member and member units. This study computes the values of Cai, Zhi, and Fen which can apply to both the section and the plan. The vertical section structure is determined by combining the standard member heights (Cai) and the standard unit heights (CaiZhi). The bays of columns are made by multiples of the standard member width (Fen).

In Vitro Antifungal Activity of (1)-N-2-Methoxybenzyl-1,10-phenanthrolinium Bromide against Candida albicans and Its Effects on Membrane Integrity

  • Setiawati, Setiawati;Nuryastuti, Titik;Ngatidjan, Ngatidjan;Mustofa, Mustofa;Jumina, Jumina;Fitriastuti, Dhina
    • Mycobiology
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    • v.45 no.1
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    • pp.25-30
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    • 2017
  • Metal-based drugs, such as 1,10-phenanthroline, have demonstrated anticancer, antifungal and antiplasmodium activities. One of the 1,10-phenanthroline derivatives compounds (1)-N-2-methoxybenzyl-1,10-phenanthrolinium bromide (FEN), which has been demonstrated an inhibitory effect on the growth of Candida spp. This study aimed to explore the in vitro antifungal activity of FEN and its effect on the membrane integrity of Candida albicans. The minimum inhibitory concentration (MIC) and the minimum fungicidal concentration (MFC) of FEN against planktonic C. albicans cells were determined using the broth microdilution method according to the Clinical and Laboratory Standards Institute guidelines. Cell membrane integrity was determined with the propidium iodide assay using a flow cytometer and were visualized using scanning electron microscopy (SEM). Planktonic cells growth of C. albicans were inhibited by FEN, with an MIC of $0.39-1.56{\mu}g/mL$ and a MFC that ranged from 3.125 to $100{\mu}g/mL$. When C. albicans was exposed to FEN, the uptake of propidium iodide was increased, which indicated that membrane disruption is the probable mode of action of this compound. There was cells surface changes of C. albicans when observed under SEM.

Variations of DOC and Phenolics in Pore-water of Peatlands (이탄습지 공극수내 용존유기탄소와 페놀계열 물질의 변화도)

  • Freeman, Chris;Kim, Seon-Young;Kang, Ho-Jeong
    • Korean Journal of Ecology and Environment
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    • v.35 no.4 s.100
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    • pp.306-311
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    • 2002
  • The amount and composition of dissolved organic carbon in wetlands are of great importance for their influence in secondary productivity, various biogeochemical processes, and aquatic ecosystem functions. In the present study, we measured variations of DOC and phenolics concentrations in pore-water of three northern peatlands (bog, fen, and swamp) over a 1-year period. General microbial activity (soil respirometry) and phenol oxidase enzyme activity were determined in the same peatlands to elucidate mechanisms underlying the differences in DOC and phenolics contents. The concentrations of DOC varied 25.5-45.4 (bog),29.2-71.4 (fen), and 13.5-87.6 (swamp) mg/L, while phenolic concentrations ranged 13.3-48.1 (bog), 7.6-29.5(fen) , and 4.9-30.8 (swamp) mg/L. The seasonal variations of DOC and phenolics in the swamp suggest that litterfall may be one of the most important factors for the DOC dynamics in such systems. The lowest microbial activity and phenol oxidase activity were found in the bog, which appears to Induce high percentage of phenolic contents in pore-water from bogs. It is also suggested that not only the DOC concentrations but also composition of DOC is of great importance in wetland biogeochernistry.

The comparative study on Liu-Jing-Bian-Zheng(六經辨證) of ${\ll}$Sang Han Lun(傷寒論)${\gg}$ and Liu-Jing-Fen-Zheng(六經分證) of ${\ll}$Su Wen.Re Lun(素問.熱論)${\gg}$ (${\ll}$소문(素問).열론(熱論)${\gg}$ 육경분증(六經分證)과 ${\ll}$상한론(傷寒論)${\gg}$ 육경변증(六經辨證)의 상관성(相關性)에 대(對)한 연구(硏究))

  • Lee, Dong-Hy;Lee, Jun-Beom;Hwang, Min-Seob;Yoon, Jong-Hwa
    • Korean Journal of Acupuncture
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    • v.21 no.4
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    • pp.145-156
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    • 2004
  • Objective : The following study was undertaken in order to seek the acupuncture operation method of ${\ll}$Sang Han Lun(傷寒論)${\gg}$ Liu-Jing-Bian-Zheng(六經辨證). Methods : Based on the documents quoted in ${\ll}$Sang Hang Za Bing Lun.Xu Wen(傷寒雜病論 序文)${\gg}$ of 'Zhang, Zhong-Jing(張仲景)', the relativity of the theory of Jing-Mai(經脈) and Liu-Jing-Bian-Zheng of convalescence. Results : 1. ${\ll}$ Sang Han Lun${\gg}$ Liu-Jing-Bian-Zheng has succeeded and was developed based on Liu-Jing-Fen-Zheng(六經分證) of ${\ll}$Su Wen Re Lun(素問.熱論)${\gg}$. 2. Liu-Jing-Bing became the general principle of Fen-Jing(分經) and Ding-Zheng(定證) that may be applicable to Fenghan(風寒), Wenre(溫熱), Lili(역려) and Zabing(雜病). 3. Most commentators of ${\ll}$ Sang Han Lun${\gg}$ in the Song, Ming and Ching Dynasties of ${\ll}$ Sang Han Lun${\gg}$ interpreted the Liu-Jing-Bing in physiological and pathological aspects of Rong-Wei(榮衛)

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Dynamic analysis of buildings considering the effect of masonry infills in the global structural stiffness

  • de Souza Bastos, Leonardo;Guerrero, Carolina Andrea Sanchez;Barile, Alan;da Silva, Jose Guilherme Santos
    • Coupled systems mechanics
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    • v.8 no.2
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    • pp.169-184
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    • 2019
  • This research work presents a study that aims to assess the dynamic structural behaviour and also investigate the human comfort levels of a reinforced concrete building, when subjected to nondeterministic wind dynamic loadings, considering the effect of masonry infills on the global stiffness of the structural model. In general, the masonry fills most of the empty areas within the structural frames of the buildings. Although these masonry infills present structural stiffness, the common practice of engineers is to adopt them as static loads, disregarding the effect of the masonry infills on the global stiffness of the structural system. This way, in this study a numerical model based on sixteen-storey reinforced concrete building with 48 m high and dimensions of $14.20m{\times}15m$ was analysed. This way, static, modal and dynamic analyses were carried out in order to simulate the structural model based on two different strategies: no masonry infills and masonry infills simulated by shell finite elements. In this investigation, the wind action is considered as a nondeterministic process with unstable properties and also random characteristics. The fluctuating parcel of the wind is decomposed into a finite number of harmonic functions proportional to the structure resonant frequency with phase angles randomly determined. The nondeterministic dynamic analysis clearly demonstrates the relevance of a more realistic numerical modelling of the masonry infills, due to the modifications on the global structural stiffness of the building. The maximum displacements and peak accelerations values were reduced when the effect of the masonry infills (structural stiffness) were considered in the dynamic analysis. Finally, it can be concluded that the human comfort evaluation of the sixteen-storey reinforced concrete building can be altered in a favourable way to design.

Localization of Germin Genes and Their Products in Developing Wheat Coleoptiles

  • Caliskan, Mahmut;Ozcan, Birgul;Turan, Cemal;Cuming, Andrew C.
    • BMB Reports
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    • v.37 no.3
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    • pp.339-342
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    • 2004
  • Germination is a process which characterized with nescient synthesis of genes. Among the genes synthesized during the germination of wheat embryos, germin genes, proteins and their enzymatic activity were defined. Germin is a water soluble homopentameric glycoprotein which is remarkable resistant to degradation by a broad range of proteases including pepsin. Germin proteins found to have strong oxalate oxidase activity which produces hydrogen peroxide by degrading oxalic acid. The current study, aimed to localize the germin genes, proteins and enzymatic activities in developing coleoptiles which is a rapidly growing protective tissue of leaf primordium and shoot apex. Non-radioactively abeled germin riboprobes were employed to localize germin mRNAs in situ. FITC (Fluorescein isothiocyanate) and alkaline phosphatase linked anti-germin antibodies were used to localize germin proteins under the fluorescence and light microscopy and finally germin enzymatic activity was localized by using appropriate enzyme assay. The results revealed that in coleoptiles germin genes, proteins and their enzymatic activity were predominantly associated with the cells of epidermis and vascular bundle sheath cells.

ON A SUBCLASS OF CERTAIN STARLIKE FUNCTIONS WITH NEGATIVE COEFFICIENTS

  • Kamali, Muhammet;Orhan, Halit
    • Bulletin of the Korean Mathematical Society
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    • v.41 no.1
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    • pp.53-71
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    • 2004
  • A certain subclass $T_{\Omega}(n,\;p,\;\lambda,\;\alpha)$ of starlike functions in the unit disk is introduced. The object of the present paper is to derive several interesting properties of functions belonging to the class $T_{\Omega}(n,\;p,\;\lambda,\;\alpha)$. Coefficient inequalities, distortion theorems and closure theorems of functions belonging to the class $T_{\Omega}(n,\;p,\;\lambda,\;\alpha)$ are determined. Also we obtain radii of convexity for the class $T_{\Omega}(n,\;p,\;\lambda,\;\alpha)$. Furthermore, integral operators and modified Hadamard products of several functions belonging to the class $T_{\Omega}(n,\;p,\;\lambda,\;\alpha)$ are studied here.