• Title/Summary/Keyword: consecutive growth

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Molecular Identification and Evaluation of Indigenous Bacterial Isolates for Their Plant Growth Promoting and Biological Control Activities against Fusarium Wilt Pathogen of Tomato

  • Islam, Amanul;Kabir, Md. Shahinur;Khair, Abul
    • The Plant Pathology Journal
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    • v.35 no.2
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    • pp.137-148
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    • 2019
  • In search of an effective biological control agent against the tomato pathogen Fusarium oxysporum f. sp. lycopersici, rhizospheric soil samples were collected from eight agro-ecological zones of Bangladesh. Among the bacteria isolated from soil, 24 isolates were randomly selected and evaluated for their antagonistic activity against F. oxysporum f. sp. lycopersici. The two promising antagonistic isolates were identified as Brevundimonas olei and Bacillus methylotrophicus based on morphological, biochemical and molecular characteristics. These two isolates were evaluated for their biocontrol activity and growth promotion of two tomato cultivars (cv. Pusa Rubi and Ratan) for two consecutive years. Treatment of Pusa Rubi and Ratan seeds with B. olei prior to inoculation of pathogen caused 44.99% and 41.91% disease inhibition respectively compared to the untreated but pathogen-inoculated control plants. However, treatment of Pusa Rubi and Ratan seeds with B. methylotrophicus caused 24.99% and 39.20% disease inhibition respectively. Furthermore, both the isolates enhanced the growth of tomato plants. The study revealed that these indigenous bacterial isolates can be used as an effective biocontrol agent against Fusarium wilt of tomato.

Coexistence of Intracranial Squamous Cell Carcinoma and Epidermoid Cyst: a Case with Consecutive Imaging Findings

  • Lee, Chae Woon;Park, Ji Eun;Lee, Jeong Hyun;Kim, Ho Sung;Kim, Sang Joon
    • Investigative Magnetic Resonance Imaging
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    • v.22 no.3
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    • pp.172-176
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    • 2018
  • In contrast to well-known imaging findings of intracranial epidermoid cysts on magnetic resonance imaging, those of intracranial squamous cell carcinoma (SqCC) are relatively unknown. We present a case of coexistence of intracranial SqCC and epidermoid cyst, with consecutive follow up over 14 months. Based on our case, a solid enhancing portion adjacent to a typically-looking epidermoid cyst may become a clue for coexistence of intracranial SqCC. An initial contrast enhancement and/or heterogeneous signal on diffusion weighted imaging may become a useful diagnostic clue, but more importantly, sudden rapid growth is important in formulating diagnosis.

An Analysis of Financial Ration for the Profitability in the Hotel Industry (호텔기업의 재무비율과 수익성간의 관계)

  • Park Tae Su;Lee Sang Geon
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.15 no.1
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    • pp.81-97
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    • 2004
  • The purpose of this study is to suggest management information through the analysis of relationships between financial characteristics and financial performance to the owners and managers of super deluxe hotels in Korea. The data of super deluxe hotels were collected by the electronic F/S announcement system. Forty-two hotels, which have financial statements for the previous three consecutive years were chosen as the sample of analysis. Return on total assets and times interest earned, asset turnover, current ratio of the super deluxe hotels are correlated. Return on total assets and asset turnover, sales growth rate, times interest earned are also correlated. And productivity and asset turnover of chain hotels are correlated. Based on this study, it can be concluded that chain hotels are maily correlated with growth ratio and activity ratio. Otherwise non-chain hotels are mainly correlated with current ratio and safety ratio.

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Anti-tumor Activity of Dendrostellera lessertii and the Inhibitory Effect of One of Its Purified Diterpene Ester on Wehi-164 cell Adhesion

  • Yazdanparast, R.;Mianabadi, M.;Abdolmohammadi, M.H.
    • Natural Product Sciences
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    • v.9 no.3
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    • pp.161-166
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    • 2003
  • In the course of our studies for new anticancer medicinal plants, we evaluated the effects of an alcohol-water (1:1, V/V) extract of Dendrostellera lesserii (Thymelaeaceae) leaves on the growth rates of breast tumors of rats. The breast tumors were induced in a group of rats by Dimethylbenz[a]anthracene (DMBA) injection. Our data showed that daily oral feeding of the crude extract to the rats, for 20 consecutive weeks, significantly repressed the growth rates of the breast tumors. In addition, the probable effect of D. lessertii crude extract or one of its purified active components on metastasis was evaluated using wehi-164 cells. Treatment of the cells with a single nontoxic dose of the purified active component for 48 hours inhibited the adhesion of the cells to the immobilized fibronectin molecules by almost 80% compared to the untreated control cells.

Rice growth and Nutrient change in paddy soil with reclaimed sewage irrigation (오수처리수 관개방법에 따른 수도 생육과 토양내 영양물질 변화)

  • 윤춘경;황하선;우선호
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.43 no.6
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    • pp.154-162
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    • 2001
  • This study was performed to examine the rice growth and nutrient change in paddy soil with reclaimed sewage irrigation. Total nitrogen and total phosphorus in the experimental system were analyzed before and after rice culture. The experiment lasted three consecutive years, and this paper presents results of the last year. Additional supply of nutrients to the rice culture by reclaimed sewage irrigation was significant and it increased the yield. Nutrient uptake by rice plant increased with more nutrient supplied, however. there was limit in plant uptake. Nutrient accumulation occurred in the soil and it was more apparent for the phosphorus where most of the remaining quantity was accumulated while substantial amount of nitrogen was lost during the growing season. This study suggested that additional nutrient supply by reclaimed sewage irrigation might be a supplemental benefit to the rice culture, and it can help the fertilization management. However, long term effects of continual reclaimed sewage irrigation should be assessed carefully including nutrient mass balance in the paddy rice culture system.

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Effect of Reclaimed Sewage Irrigation on Paddy Rice Culture and Yields (오수처리수의 관개가 벼의 생육 및 수확량에 미치는 효과(지역환경 \circled3))

  • 우선호;윤춘경
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2000.10a
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    • pp.611-616
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    • 2000
  • Effect of reclaimed sewage on the paddy rice culture was examined by field experiment for two consecutive years. The domestic sewage was treated by the comstructed wetland, and the effluent of the treatment wetland was used for irrigation water. Growth components and yields were compared against the CONTROL plot where conventional fertilization was applied. In general, addition of the reclaimed sewage irrigation which contained high nutrient concentration didn't affect paddy rice culture adversely, and even better growth and more yields were observed. Overall, reclaimed sewage irrigation was thought to be one of practical alternatives for irrigation water.

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The Effects of the Self-Growth Group Counseling on Self-Esteem and Life Satisfaction of University Students (자기성장 집단상담 프로그램이 대학생의 자아존중감과 생활만족에 미치는 효과)

  • Kim, Jong-Un;Kim, Hyun-Jung
    • Journal of Fisheries and Marine Sciences Education
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    • v.22 no.1
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    • pp.123-140
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    • 2010
  • The Purpose of this study was to examine the effects of self-growth group counseling on self-esteem and life satisfaction of university students. For this study the following hypotheses were established. First, does the self-growth group counseling enhance significantly the participants' self-esteem? Second, does the self-growth group counseling enhance significantly the participants's life satisfaction? Those who participated in this study were 22 University students which are in D University in Busan. Ten participants were assigned in the experimental group and twelve in the control group. The experimental group participated in the self-growth group counseling one session a week for 12 consecutive weeks held by counseling center for D University students. The instruments used in this study were Self-Esteem Scale and life satisfaction Scale. The data was analysed by ANCOVA. The average, standard deviation, and estimated marginal means were calculated and the differences between the pre and post-tests calculated, processed by SPSS 12.0. The major findings of this study can be summarized as follows: First, the self-growth group counseling is effective to enhance significantly the level of self-esteem of University students. Second, the self-growth group counseling is also effective to enhance the level of life satisfaction of University students. Based on the results, the self-growth group counseling was suggested as a means to help University students enhance their self-esteem and life satisfaction.

Effects of Cutting Condition on Rooting and Growth of Cut Flower in Plug Cutting of Dendranthema grandiflorum 'Iwanohakusen' (국화 '백선'의 플러그 삽목시 삽수조건이 발근 및 절화생육에 미치는 영향)

  • Yoo, Yong Kweon;Roh, Yong Seung
    • FLOWER RESEARCH JOURNAL
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    • v.17 no.4
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    • pp.256-261
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    • 2009
  • This study was carried out to examine the effects of cutting condition on the rooting and their subsequent growth of cut flower in plug cutting of summer-flowering chrysanthemum 'Iwanohakusen'. The more leaves were attached to the cutting, the higher shoot growth and rooting were. Shoot growth of cuttings was not affected by cutting length, but rooting was better in over 5 cm long cutting. Shoot growth was enhanced by increasing thickness of cutting, and 5.5 mm thick cutting was favored in rooting. When the many leaves were attached on the cutting, the length and weight of cut flower increased. Over 7 cm long cutting showed higher values in growth of cut flower and ray flower number. Cutting of 5.5 mm diameter showed more favorable growth of cut flower than the other treatments. Therefore, it is concluded that rooting of cutting and consecutive growth of cut flower was improved when 7 cm long and 5.5 mm diameter cutting with 4 leaves was used in plug cutting of chrysanthemum 'Iwanohakusen'.

Seven Days of Consecutive Shade during the Kernel Filling Stages Caused Irreparable Yield Reduction in Corn (Zea mays L.)

  • Kim, Sang Gon;Shin, Seonghyu;Jung, Gun-Ho;Kim, Seong-Guk;Kim, Chung-Guk;Woo, Mi-Ok;Lee, Min Ju;Lee, Jin-Seok;Son, Beom-Young;Yang, Woon-Ho;Kwon, Young-up;Shim, Kang-Bo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.61 no.3
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    • pp.196-207
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    • 2016
  • In monsoon climates, persistent shade is a troublesome weather condition with an impact on the growth and yield of corn (Zea mays L.). We imposed 7, 14, 21, and 28 days of consecutive shade (CS) on Gwangpyeongok and P3394 corn hybrids at the beginning of the kernel filling stages. Shade had little impact on leaf area and dry matter accumulation in the stem and leaves. However, dry matter accumulation in the ear was severely reduced by approximately 28% and 53% after 14 and 28 days of CS, respectively. For the components of grain yield, 7 and 14 days of shade did irreparable damage to the number of filled kernels, the kernel number per ear row, and the percent of filled kernels, but did little damage or reversible damage after removal of the shade to the 100-grain weight and the row number per ear. Shade significantly reduced the relative growth rate (RGR) due to a decrease in the net assimilation rate (NAR). These results suggest that source activity limitation by shade during the kernel filling stages leads to the inhibition of sink activity and size. The yield of biomass, ear, and grain logistically declined as the length of CS increased. Probit analysis revealed that the number of days of CS needed to cause 25% and 50% reductions in grain yield were 3.7 and 23.1, respectively. These results suggest that the plant yield loss induced by shade at the beginning of the kernel filling stages is mainly achieved within the first 7 days of consecutive shade.

The Effects of Creative Climate on the Regional Economic Growth and the Total Factor Productivity of Korean Finns -A Panel Study of Electric and Electronic Finns of the Industrial Complex- (창의성 여건이 지역경제 성장과 기업 생산성에 미치는 영향 연구 - 한국산업공단내 전기.전자기업을 중심으로 -)

  • Gheem, In-Choll;Han, Jae-Myung
    • International Commerce and Information Review
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    • v.12 no.4
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    • pp.67-109
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    • 2010
  • The theory of creative class has shown that the creative people are the key factor of success in regional economic growth. The creative people strengthen the economic competitiveness which is crucial to attract, cultivate and mobilize the resources of that region. In order to examine the theory of creative class for regional economic growth and firm productivity in Korea, this study uses the panel data of 492 Korean firms of the industrial complex producing electic and electronic manufactured goods. They are grouped into 10 industrial complexes among 16 metropolitan areas. Our findings demonstrate that creative class and 3Ts are related to the ratio of creative population density and the regional economic growth. Specifically the creative core class is of more significance to the regional economic growth than the creative professional class or the creative artist class. In our findings the panel analysis of random effects model shows that the talent index of 3Ts as well as the regional climates arc related to the individual firm's total factor productivity. This also reflects a conglomeration of the other regional climates statistically. On the other hand, the research and development expenditure of individual firms shows positive influence for each second consecutive year for the total factor productivity. Sales volume also contributes to the total factor productivity. In conclusion, we recommend that it is important to upgrade the level of creative climates by attracting the creative minds and R&D investment of the enterprises for regional economic growth and firm's total factor productivity.

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