• Title/Summary/Keyword: major elements

Search Result 1,968, Processing Time 0.033 seconds

Foldback Intercoil DNA and the Mechanism of DNA Transposition

  • Kim, Byung-Dong
    • Genomics & Informatics
    • /
    • v.12 no.3
    • /
    • pp.80-86
    • /
    • 2014
  • Foldback intercoil (FBI) DNA is formed by the folding back at one point of a non-helical parallel track of double-stranded DNA at as sharp as $180^{\circ}$ and the intertwining of two double helixes within each other's major groove to form an intercoil with a diameter of 2.2 nm. FBI DNA has been suggested to mediate intra-molecular homologous recombination of a deletion and inversion. Inter-molecular homologous recombination, known as site-specific insertion, on the other hand, is mediated by the direct perpendicular approach of the FBI DNA tip, as the attP site, onto the target DNA, as the attB site. Transposition of DNA transposons involves the pairing of terminal inverted repeats and 5-7-bp tandem target duplication. FBI DNA configuration effectively explains simple as well as replicative transposition, along with the involvement of an enhancer element. The majority of diverse retrotransposable elements that employ a target site duplication mechanism is also suggested to follow the FBI DNA-mediated perpendicular insertion of the paired intercoil ends by non-homologous end-joining, together with gap filling. A genome-wide perspective of transposable elements in light of FBI DNA is discussed.

Content of Heavy Metals in Coal Fly Ash from the Samcheonpo and the Seocheon Power Plant (삼천포와 서천 화력발전소에서 발생하는 석탄회중의 중금속 함량에 관한 연구)

  • Yoon, Chung-Han;Oh, Keun-Chang;Kim, Yong-Woong;Shin, Bang-Sup
    • Economic and Environmental Geology
    • /
    • v.28 no.2
    • /
    • pp.147-154
    • /
    • 1995
  • Coal fly ashes collected from the Samcheonpo and the Seocheon Power Plants were analyzed for major and minor components and heavy metals such as As, Cd, Co, Cr, Cu, Ga, Hg, Mo, Ni, Pb, Sb, V and Zn in order to suggest basic data to apply coal fly ash as fertilizer or soil ameliorator. The specific gravity of the samples was less than 2.0, and amounts of organic matter range from 5.0% to 12.3%. The identified minerals by XRD were mainly quartz, mullite and pyrite in anthracite coal, and mainly quartz and mullite in bituminous coal. Generally, the contents of heavy metal elements analyzed were lower less than those of soil, though higher in some samples. Element couples of some elements( e.g., As-Mo, Zn ; Mo-As, Sb, V, Zn ; Sb-Zn ) show positive correlations with each other, but the high correlations of toxic elements such as As, Pb, Cd and Hg indicate to give attention to apply coal fly ash as fertilizer or soil ameliorator.

  • PDF

Concentration Variations of Trace Elements in Gosan, Jeiu During the Polluted Period in November 2001 and the Yellow Sand Period in Spring 2002 (2001년 11월 오염시기와 2002년 봄 황사시기 제주도 고산에서의 미량원소 농도 변화)

  • Han J.S;Ghim Y.S;Moon K.J;Ahn J.Y;Kim J.E;Ryu S.Y;Kim Y.J;Kong B.J;Lee S.J
    • Journal of Korean Society for Atmospheric Environment
    • /
    • v.20 no.2
    • /
    • pp.143-151
    • /
    • 2004
  • The chemical composition of PM$_{2.5}$ was measured at Gosan, Jeju for two weeks each in November 2001 and spring 2002. In the latter part of the measurement period of November 2001, designated as the polluted period in this work, secondarily formed ion components as well as primarily emitted elemental carbon were high. PM$_{2.5}$ mass concentration was also high in this polluted period compared with the yellow sand period, in which daily average of PM $_{10}$ peaked up to 520 $\mu\textrm{g}$/㎥. Increase of major components of anthropogenic origin in the polluted period was not correlated with the variation in sea salt components while increase of crustal components in the yellow sand period was highly correlated with the variation in sea salt components. Trace elements were generally higher in the yellow sand period; however, toxic heavy metals such as zinc, cadmium and lead were the highest in the polluted period.d.d.d.

Physics of Yin-Yang & Five Element and its General Application to Constitution & Psychology

  • Jang, Dong-Soon;Shin, Mi-Soo;Paeck, Young-Soo
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
    • /
    • 2000.04a
    • /
    • pp.342-351
    • /
    • 2000
  • The paper is concerned about the discovery of new physics of the old oriental philosophy of the yin-Yang '||'&'||' five elements. the physical properties of Five Elements are defined, similarly as in thermodynamics, as five different characteristic state in a cyclic system of nature or a human body. Wood is defined as "warm and soft", Fire as "hot and dispersive", Earth as "agglomerating and sticky", Metal as "tensile and crystallizing", and Water as "cool and slippery" state, respectively. Based on the physics of Five Elements and Qi channel theory, five different constitution classification s are made according to the shape of human face, such as long, inverse triangle, circle, square, and triangle geometry, respectively.Since the constitution implies the relative size or strength of 5 major organs, this theory can be applies successfully to the prediction of the susceptibility to specific diseases as well as the analyses of personal character such as emotion and sensibility. The specific character is analyzed with four different aspects; that is, the first and second are caused by the positive and negative side of the strongest organ, the third character by determined the weakest organ, and finally the fourth by the abnormal psychology due to serious illness.bnormal psychology due to serious illness.

  • PDF

A Study on the Interior finishing materials for Visual Marketing of Department Stores (백화점의 비주얼마케팅을 위한 실내마감재연구)

  • Kim Yeon-Ah
    • Korean Institute of Interior Design Journal
    • /
    • v.14 no.6 s.53
    • /
    • pp.132-139
    • /
    • 2005
  • Selling Environment is very important space in this era of sensitive consumption, which facilitates direct contacts with consumers. Interests of consumers in the 21st centuries, lie in the higher quality of life, and they wart to create their own lifestyle through purchasing of goods in the marketing environment. A company can hold dominant position in the changing marketing environment, in case it differentiate with other competing companies and keep consistencies of identity. Finishing materials of interior design elements, play an important role in making a visual images of department stores, and the usage of finishing materials transfers the images of department store to consumers This study aims to introduce theoretical backgrounds of interior materials composition, which provides important tools for decision of images of department stores, and also aims to propose design guidelines for interior finishing materials as an elements of visual marketing, through the case studies of major department stores. Depending on these intentions, present conditions of interior finishing materials are analyzed, and a fundamental planning directions of interior materials are proposed, as the strategic elements of a department visual marketing.

sRNA EsrE Is Transcriptionally Regulated by the Ferric Uptake Regulator Fur in Escherichia coli

  • Hou, Bingbing;Yang, Xichen;Xia, Hui;Wu, Haizhen;Ye, Jiang;Zhang, Huizhan
    • Journal of Microbiology and Biotechnology
    • /
    • v.30 no.1
    • /
    • pp.127-135
    • /
    • 2020
  • Small RNAs (sRNAs) are widespread and play major roles in regulation circuits in bacteria. Previously, we have demonstrated that transcription of esrE is under the control of its own promoter. However, the regulatory elements involved in EsrE sRNA expression are still unknown. In this study, we found that different cis-regulatory elements exist in the promoter region of esrE. We then screened and analyzed seven potential corresponding trans-regulatory elements by using pull-down assays based on DNA affinity chromatography. Among these candidate regulators, we investigated the relationship between the ferric uptake regulator (Fur) and the EsrE sRNA. Electrophoresis mobility shift assays (EMSAs) and β-galactosidase activity assays demonstrated that Fur can bind to the promoter region of esrE, and positively regulate EsrE sRNA expression in the presence of Fe2+.

A Study on Classification and Preference of Physical Features in Front Plaza of Department Store (백화점 전면광장의 물리적 특성 유형화 및 선호도 연구)

  • 정용문;김중재;변재상
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.32 no.3
    • /
    • pp.91-105
    • /
    • 2004
  • Recently the function of a department store has changed to the concept of a multi-functional center because of the alternative stores such as discount stores, home shopping, and internet shopping. This means that the front plaza of a department store is not a personal or private space any more, but a public space. This study focuses on the special character of public space through the classification and preference types of department store front plazas. The major results of this study can be summarized as follows: (1) Components of front plaza of department store are classified by three factors. The first factor, named "space limit", has 14 elements ; the second, named "space decoration" has 16 elements ; third, named "activity", has 2 elements. The first preferred element is easily- used and easily- serviced wide space. The second preferred element is the equipment that is placed linearly along the street. The third preferred element is cultural events. (2) The comparison between the frequency and preference shows that the plazas could not satisfy the user-needs. (3) Preference factors of front plazas were examined to three characters such as familiarity, peculiarity, and openness. Familiarity, peculiarity, openness have a positive correlation in all types. Peculiarity especially influences the other two space - preference factors.

Petrochemical Characteristics and Review on Petrogenesis on Cretaceous to Tertiary Volcanic Rocks in the Kyongsang Basin (경상분지 백악기~제3기 화산암류의 암석화학적 특징과 암석 성인 고찰)

  • Sung, Jong-Gyu;Kim, Jin-Seop
    • The Journal of the Petrological Society of Korea
    • /
    • v.21 no.2
    • /
    • pp.217-233
    • /
    • 2012
  • Major elements abundances of Cretaceous to Tertiary volcanic rocks in Kyongsang basin are similar with Southern Volcanic Zone (SVZ) in Andes. Sr, K, Rb, $Ba{\pm}Th$ abundances, which have low ionic charge, are selectively fertile, on the other hand Ta, Nb, Ce, P, Zr, Hf, Sm, Ti, Y, Yb, Sc, Cr abundances are low. K, Sr, Th show characteristic spikes and Nb show remarkable trough on trace elements spider diagram. Trace elements abundances are higher than that of Andes which is supposed to mantle sources of Kyongsang basin volcanic rocks are produced lower degree of partial melting than SVZ in Andes.

The Esthetic Characteristics on Christian Lacroix's Haute Couture Works (크리스티앙 라크로와(Christian Lacroix)의 오뜨꾸뛰르 작품에 표현된 미적 특성)

  • Kim, Sun-Young
    • The Research Journal of the Costume Culture
    • /
    • v.15 no.2 s.67
    • /
    • pp.203-213
    • /
    • 2007
  • This study is on the esthetic characteristics of Christian Lacroix's haute couture works. The materials for the study are the precedent studies, the related literature, and the photographs of the works and the interview articles in fashion journal at home and abroad. The result of this study were finds three esthetic characteristics in his works and fashion philosophy; historic, ethnic, and hybrid sense. First, the historic sense, Christian Lacroix's biggest characteristic, is influenced by his major studies, but is not a revival from the past itself but a new characteristic based on borrowing and reinterpreting the images created by introducing and compromising the historic elements. Second, the ethnic sense is influenced by the growing background in his childhood and can be characterized as compromise among the multi-national design features. It is certified by the contrasting images, styles, expressions, materials, ornament elements, and so forth with the worldwide ethnic senses centered by the southern France and Spain. Third, the hybrid sense as the essential characteristic shows the uniqueness in his design by not only combining the modern materials, technologies, and futuristic emotion but also liberally compromising and associating the emotions based on a mixture among the follows; the historic representative styles, the foreign materials, the diversity between the Eastern and Western culture, and all elements, details, trimmings In the fashion design.

  • PDF

A Case Study on the Urban Image through Color (색채를 통해 나타나는 도시이미지 사례 연구)

  • Lee, Jin-Young;Kim, Young-Joo
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 2009.04a
    • /
    • pp.321-326
    • /
    • 2009
  • For building an urban image, various elements such as symbolic building, ethnic characteristics, historical background, natural environment, and diverse cultural elements can influence on it. Many cities in developed countries are showing their unique urban image reflecting their own culture, history, and aesthetic tastes. Especially color, one of the major design elements, has greater impact than other visual factors to form an urban characteristic. Despite the long history and cultural background, Seoul as a capital city of Korea does not show an unique city image with the perspective of color. Recently, Seoul has been designated as '2010 World Design Capital' and implements various urban design projects. As a leading city of design, Seoul is trying to make its urban identity through the own symbolic environment color. The purpose of this study is to find an environmental color scheme for developing a desirable urban design through several cases of foreign countries. For the purpose, Paris, London, Amsterdam, and Tokyo were selected as case cities. Each of the cities showed their own cultural characteristics and made their unique urban image by appropriate usage of their natural environment, symbolic building, emblem of country, and so on. We need to consider these successful cases to build up the image of Seoul.

  • PDF