• Title/Summary/Keyword: TOM

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A Study of TOM(Turn-of-the-Month) Effect in KOSDAQ Market (코스닥시장의 월바뀜(TOM)효과에 관한 연구)

  • Hong, Geon-Pyo;Im, In-Seob;Oh, Hyun-Tak
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.1
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    • pp.308-316
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    • 2015
  • The purpose of this study is to verify TOM(turn-of-the-month) effect in the Kosdaq market, and that to compare to TOM effect of KOSPI for supporting degree of identification and to find new features. For this study, as the study basis sample, we used the daily data of the KOSDAQ from January 1996 to December 2013 and verified the TOM effect through yearly, monthly, classification by event as financial crisis, different period of TOM in order to clarify the effect of the KOSPI and KOSDAQ. As a result, We find that the TOM effect in KOSDAQ is always present uniformly in yearly, monthly, event-specific, which unlike TOM period also in KOSPI and generally TOM effect in KOSDAQ market which has larger volatility was appeared more pronouncedly than KOSPI market, and particularly TOM effect of KOSDAQ was larger than that of KOSPI on financial crisis occasion. But TOM effect of KOSDAQ was less stable than KOSPI.

MicroTom - A Model Plant System to Study Bacterial Wilt by Ralstonia solanacearum

  • Park, Eun-Jin;Lee, Seung-Don;Chung, Eu-Jin;Lee, Myung-Hwan;Um, Hae-Young;Murugaiyan, Senthilkumar;Moon, Byung-Ju;Lee, Seon-Woo
    • The Plant Pathology Journal
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    • v.23 no.4
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    • pp.239-244
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    • 2007
  • MicroTom is a miniature tomato plants with various properties that make it as a model system for experiments in plant molecular biology. To extend its utility as a model plant to study a plant - bacterial wilt system, we investigated the potential of the MicroTom as a host plant of bacterial wilt caused by Ralstonia solanacearum. We compared the disease progress on standard tomato and MicroTom by two inoculation methods, root dipping and soil drenching, using a race 1 strain GMI1000. Both methods caused the severe wilting on MicroTom comparable to commercial tomato plant, although initial disease development was faster in root dipping. From the diseased MicroTom plants, the same bacteria were successfully reisolated using semiselective media to fulfill Koch's postulates. Race specific and isolate specific virulence were investigated by root dipping with 10 isolates of R. solanacearum isolated from tomato and potato plants. All of the tested isolates caused the typical wilt symptom on MicroTom. Disease severities by isolates of race 3 was below 50 % until 15 days after inoculation, while those by isolates of race 1 reached over 50% to death until 15 days. This result suggested that MicroTom can be a model host plant to study R. solanacearum - plant interaction.

Effect of silver nitrate(AgNO3) and polyamines on shoot organogenesis and plant regeneration of Lycopersicon esculentum cultivar, Micro-Tom (질산은과 polyamines이 미니토마토, Micro-Tom 신초 기관발생과 식물체 재분화에 미치는 영향)

  • Kim, Yong-Ho;Park, Cheol-Ho;Park, Sang-Un
    • Journal of Plant Biotechnology
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    • v.29 no.1
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    • pp.25-29
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    • 2002
  • The study was carried out to establish an efficient protocol for shoot organogenesis and plant regeneration from stem explant cultures of Lycopersicon esculentum cv. Micro-Tom. The regenerated shoots obtained from stem explant cultures on solid MS medium containing the different concentrations of BAP. The highest number of shoots (5.3) per explant and shoot growth (0.7 cm) was obtained on MS medium containing 4.0 mg/L BA. The additions of AgNO$_3$ and putrescine substantially improved the shoot regeneration frequency, at the optimal concentration of 7 mg/L and 50 mg/L respectively. The regenerated shoots (about 1 cm) were normal and could be easily rooted with 0.1 mg/L IBA treatment. The rooted plants were hardened and transferred to vermiculite with a 92% survival rate where they grew normally.

Monitoring of the Atmospheric Aerosol using TOMS Aerosol Index Data (TOMS(Total Ozone Mapping Spectrometer) Aerosol Index자료를 이용한 대기 에어로졸 모니터링)

  • 이권호;김영준
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2001.11a
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    • pp.441-442
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    • 2001
  • TOMS (Total Ozone Mapping Spectrometer)는 Nimbus-7과 Meteor-3에 탑재되어 자외선 영역에서 오존의 양을 측정하는 임무를 가지고 1978년부터 1994년 12월까지 일별 오존자료를 제공하였다. 1996년 8월 17일에 발사된 일본의 ADEOS에 탑재된 TOMS는 1997년 6월 29일까지 자료를 생산했으며 1996년7월 2일 발사된 Earth Probe의 TOMS는 현재까지 실시간 자료를 보내오고 있다. TOMS는 지구의 대기에 의해 반사된 태양 광선중의 자외선 자료를 통해 오존의 양을 간접적으로 측정하는 것이 원리이다. (중략)

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Characteristics of Trichloroethene and Tetrachloroethene Sensing Optical Fiber Biosensor Using Toluene-o-monooxygenase and Fluoresceinamine (Toluene-o-monooxygenase와 Fluoresceinamine을 이용한 Trichloroethene와 Tetrachloroethene 감지용 광섬유 바이오센서의 특성)

  • Ryoo, Doohyun
    • Journal of Soil and Groundwater Environment
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    • v.23 no.4
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    • pp.42-47
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    • 2018
  • E. coli TG1 pBS TOM Green was cultured to produce toluene-o-monooxygenase (TOM). A biosensor system was successfully constructed using purified TOM to effectively detect trichloroethene (TCE) and tetrachloroethene (PCE), which represent some of the major contaminants in groundwater and soil. In order to utilize TOM as a sensor, NADH, a biological oxidizer, was replaced with hydrogen peroxide which is a chemical oxidizing agent. A three-layered sandwich-type sensing tip was fabricated on the outside of the hydrophilic polyvinylidene fluoride membrane. TCE and PCE were applied to the sensor and the hydrogen ions were measured by a fiber optic fluorometer using fluoresceinamine. Calibration curves were obtained for TCE and PCE in the concentration range of 0.2-100 mg/l, and the detection limit of the system was $10{\mu}g/l$ for TCE and PCE.

Toluene Monooxygenase의 Peroxide shuntting에 의한 TCE와 PCE 분해 특성

  • 류두현;김형수;최용욱;김용미;이경애;유재수;조현
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2004.09a
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    • pp.277-280
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    • 2004
  • TCE and PCE, suspected carcinogens, are the most common groundwater pollutant from extensive use as a solvent and degreaser. Escherichia coli TGI pBSKAN TOM Green and E. coli TGI pBSKAN ToMO, which were used DNA shuffling technique, produce Toluene-o-monooxygenase(TOM) and toluene-o-xylene- monooxygenase(ToMO). These cells and enzymes are degrading TCE and PCE, TOM and ToMO are needed to cofactor, such as NADH, NADPH and other cofactors. Used TCE and PCE degrading microorganisms experiment the contaminated material removal efficiency. A shunting test used NAD and Hydrogen peroxide.

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Systematic Development of Tomato BioResources in Japan

  • Ariizumi, Tohru;Aoki, Koh;Ezura, Hiroshi
    • Interdisciplinary Bio Central
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    • v.3 no.1
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    • pp.1.1-1.6
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    • 2011
  • Recently, with the progress of genome sequencing, materials and information for research on tomato (Solanum lycopersicum) have been systematically organized. Tomato genomics tools including mutant collections, genome sequence information, full-length cDNA and metabolomic datasets have become available to the research community. In Japan, the National BioResource Project Tomato (NBRP Tomato) was launched in 2007, with aims to collect, propagate, maintain and distribute tomato bioresources to promote functional genomics studies in tomato. To this end, the dwarf variety Micro-Tom was chosen as a core genetic background, due to its many advantages as a model organism. In this project, a total of 12,000 mutagenized lines, consisting of 6000 EMS-mutagenized and 6000 gamma-ray irradiated M2 seeds, were produced, and the M3 offspring seeds derived from 2236 EMS-mutagenized M2 lines and 2700 gamma-ray irradiated M2 lines have been produced. Micro-Tom mutagenized lines in the M3 generation and monogenic Micro-Tom mutants are provided from NBRP tomato. Moreover, tomato cultivated varieties and its wild relatives, both of these are widely used for experimental study, are available. In addition to these bioresources, NBRP Tomato also provides 13,227 clones of full-length cDNA which represent individual transcripts non-redundantly. In this paper, we report the current status of NBRP Tomato and its future prospects.

Improving and Validating a Greenhouse Tomato Model "GreenTom" for Simulating Artificial Defoliation (적엽작업을 반영하기 위한 시설토마토 생육모형(GreenTom) 개선 및 검증)

  • Kim, Yean-Uk;Kim, Jin Hyun;Lee, Byun-Woo
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.21 no.4
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    • pp.373-379
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    • 2019
  • Smart-farm has been spreading across Korea to improve the labor efficiency and productivity of greenhouse crops. Although notable improvements have been made in the monitoring technologies and environmental-controlling systems in greenhouses, only a few simple decision-support systems are available for predicting the optimum environmental conditions for crop growth. In this study, a tomato growth model (GreenTom), which was developed by Seoul National University in 1997, was calibrated and validated to examine if the model can be used as a decision-supporting system. The original GreenTom model was not able to simulate artificial defoliation, which resulted in overestimation of the leaf area index in the late growth. Thus, an algorithm for simulating the artificial defoliation was developed and added to the original model. The node development, leaf growth, stem growth, fruit growth, and leaf area index were generally well simulated by the modified model indicating that the model could be used effectively in the decision-making of smart greenhouse.

A Study of Chuck Jones's Directing Style in (척 존스 Chuck Jones의 연출 특징 연구(Tom and Jerry를 중심으로))

  • Yoon, Jeong-Won
    • Cartoon and Animation Studies
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    • s.36
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    • pp.303-323
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    • 2014
  • After TV Broadcasting service started, American Animation Industry changed dramatically. Through 1930th to 1940th, Major Animation Studios made every effort to adapt to new Animation production environment. Those efforts led rapid improvement of Animation again by succession of heritage in the golden age of American Animation. in spite of successful outcome, some critic like Bernard Oma blamed Animation on repeated chasing pattern, glamorized violence with exaggeration and humor caused by lack of idea. Nevertheless the decade passed by, achievement of the era still have influenced today. The animated films of the age have attractive power in comparison to today's works and Chuck Jones was a glamorous one of the age-leading masters. "Tom and Jerry" series, "Bugs Bunny", "Daffy Duck", and so on, he planned, designed characters and directed those masterpieces. In this study, episodes of "Tom and Jerry" that had been directed by Chuck Jones during 1963 and 1967 are analysed in the view point of direction style. In recently, Korean Animation Industry seems to be accumulated power for rising again by showing new animations that are adapted to new media. Thus, this study aims to give an idea for the new vision of Korean Animation through analysing Chuck Jones' Masterpieces.