• Title/Summary/Keyword: Culture-independent method

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Influence of Self-Construal on Choice of Overseas Travel Product Type

  • KIM, Young-Doo
    • The Journal of Industrial Distribution & Business
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    • v.11 no.1
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    • pp.29-38
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    • 2020
  • Purpose: Understanding which product types of overseas travel (free independent travel vs. package travel) consumers will choose is one of the key issues of marketing and consumer behavior in travel agency management. Prior studies on overseas travel type preferences mainly focused on comparing regional differences (e.g., Asian vs. Westerner, or Korean vs. Australian, or Korean vs. Japanese, or American, French, Italian vs. Japanese) influencing the choice of overseas travel type. Another researchers focused on comparing cultural differences (e.g., individualism vs. collectivism, or individualistic culture vs. collectivistic culture), subcultural difference (e.g., acculturation; Koreans living in Republic of Korea vs. Koreans living in Australia), travel lifestyle, and socio-demographics (e.g., age, gender, income level, education level, marital status, occupation etc.). However, there are few studies that identify individual psychological differences (i.e., individual psychological differences within the same culture) influencing the choice of overseas travel type. Self-construal is a psychological factors that greatly influences choice behavior. The purpose of this study was to examine the role of self-construal as an antecedent variable influencing choice of overseas travel product type. Research design, data and methodology: To achieve the purpose of this study, the questionnaire survey method was used. Self-construal items composed of independent self-construal items and interdependent self-construal items. Product types of overseas travel were free independent travel (FIT) type versus package travel type. In this study, the correlation coefficient between independent self-construal and interdependent self-construal was nonsignificant. It meant that the relationship between independent self-construal and interdependent self-construal was orthogonal. Therefore it was analyzed that independent self-construal and interdependent self-construal separately. Reliability analysis, factor analysis, and logistic regression analysis (controlling gender and age) was used as the data analysis method. Results: According to the results of this study, the stronger independent self-construal, the more preference for the free independent travel type rather than package travel, and the stronger interdependent self-construal, the more preference for the package travel type rather than free independent travel. Conclusions: Self-construal is an antecedent variable influencing the choice of travel type. Travel agencies must consider the consumer's self-construal (independent self-construal vs. interdependent self-construal) before planning and designing overseas travel products.

Identification of LAB and Fungi in Laru, a Fermentation Starter, by PCR-DGGE, SDS-PAGE, and MALDI-TOF MS

  • Ahmadsah, Lenny S.F.;Kim, Eiseul;Jung, Youn-Sik;Kim, Hae-Yeong
    • Journal of Microbiology and Biotechnology
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    • v.28 no.1
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    • pp.32-39
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    • 2018
  • Samples of Laru (a fermentation starter) obtained from the upper part of Borneo Island were analyzed for their lactic acid bacteria (LAB) and fungal diversity using both a culture-independent method (PCR-DGGE) and culture-dependent methods (SDS-PAGE and MALDI-TOF MS). Pediococcus pentosaceus, Lactobacillus brevis, Saccharomycopsis fibuligera, Hyphopichia burtonii, and Kodamaea ohmeri were detected by all three methods. In addition, Weissella cibaria, Weissella paramesenteroides, Leuconostoc citreum, Leuconostoc mesenteroides, Lactococcus lactis, Rhizopus oryzae/Amylomyces rouxii, Mucor indicus, and Candida intermedia were detected by PCR-DGGE. In contrast, Lactobacillus fermentum, Lactobacillus plantarum, Pichia anomala, Candida parapsilosis, and Candida orthopsilosis were detected only by the culture-dependent methods. Our results indicate that the culture-independent method can be used to determine whether multiple laru samples originated from the same manufacturing region; however, using the culture-independent and the two culture-dependent approaches in combination provides a more comprehensive overview of the laru microbiota.

Identification of Lactic Acid Bacteria in Galchi- and Myeolchi-Jeotgal by 16S rRNA Gene Sequencing, MALDI-TOF Mass Spectrometry, and PCR-DGGE

  • Lee, Yoonju;Cho, Youngjae;Kim, Eiseul;Kim, Hyun-Joong;Kim, Hae-Yeong
    • Journal of Microbiology and Biotechnology
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    • v.28 no.7
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    • pp.1112-1121
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    • 2018
  • Jeotgal is a Korean traditional fermented seafood with a high concentration of salt. In this study, we isolated lactic acid bacteria (LAB) from galchi (Trichiurus lepturus, hairtail) and myeolchi (Engraulis japonicas, anchovy) jeotgal on MRS agar and MRS agar containing 5% NaCl (MRS agar+5% NaCl), and identified them by using 16S rRNA gene sequencing and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) as culture-dependent methods. We also performed polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) as a culture-independent method to identify bacterial communities. Five samples of galchi-jeotgal and seven samples of myeolchi-jeotgal were collected from different regions in Korea. A total of 327 and 395 colonies were isolated from the galchi- and myeolchi-jeotgal samples, respectively. 16S rRNA gene sequencing and MALDI-TOF MS revealed that the genus Pediococcus was predominant on MRS agar, and Tetragenococcus halophilus on MRS agar+5% NaCl. PCR-DGGE revealed that T. halophilus, Tetragenococcus muriaticus, and Lactobacillus sakei were predominant in both types of jeotgal. T. halophilus was detected in all samples. Even though the same species were identified by both culture-dependent and -independent methods, many species identified by the culture-dependent methods were not in the bacterial list identified by the culture-independent methods. The distribution of bacteria in galchi-jeotgal was more diverse than in myeolchi-jeotgal. The diverse LAB in galchi- and myeolchi-jeotgals can be further studied as candidates for starter cultures to produce fermented foods.

Analysis of Bacterial Diversity in Fermented Skate Using Culture-dependent and Culture-independent Approaches (배양 의존적 및 배양 비의존적 방법에 의한 홍어회 서식 미생물의 다양성 분석)

  • Lee, Eun-Jung;Kim, Tae-Hyung;Kim, Ha-Kun;Lee, Jung-Kee;Kwak, Hahn-Shik;Lee, Jong-Soo
    • Microbiology and Biotechnology Letters
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    • v.38 no.3
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    • pp.322-328
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    • 2010
  • Fermented skate is a traditional Korean food popular in Southwestern area of Korea. It has a characteristic flavor and alkaline pH. In this study we tried to determine the microbial flora in fermented skate using two different approaches. In culture-independent method, we amplified V2 region of 16S rRNA gene by PCR and cloned them into pUC18 plasmid to construct 16S rDNA fragment library. BLAST searches for the sequences obtained from this library revealed that uncultured bacterium clone 054E11.b was the most dominant flora in this fermented fish. In culture-dependent method, we diluted suspension of skate and spreaded on MRS, PCA, and MacConkey plates. We identified colonies grown on those plates by using PCR amplification of V2 region of 16S rRNA and DNA sequencing. BLAST searches of those DNA sequences resulted in totally different species with the observations from the 16S rDNA library analysis. Discrepancies of results obtained from both approaches suggest that the agar plates used in culture-dependent method may be different from the real condition of fermented skate. Therefore, results from culture-independent approach using 16S rDNA fragment library analysis may reflect real microbial flora in fermented skate.

Microbiological Analysis of Dongchimi, Korean Watery Radish Kimchi, at the Early and Mid-phase Fermentation

  • Park, Sun-Jung;Chang, Jin-Hee;Cha, Seong-Kwan;Moon, Gi-Seong
    • Food Science and Biotechnology
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    • v.17 no.4
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    • pp.892-894
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    • 2008
  • During dongchimi fermentation at 5 and $25^{\circ}C$, the pH lowered slowly and reached 4.03 at $5^{\circ}C$ after 30 days, whereas it lowered dramatically and reached 3.59 at $25^{\circ}C$ after 2 days. The predominant bacteria were Leuconostoc (Leu.) mesenteroides at $25^{\circ}C$ until day 2 which changed into Lactobacillus (Lb.) plantarum at day 3, analyzed by a culture dependent method with partial 16S rRNA gene sequencing, whereas Leu. mesenteroides occupied predominantly at $5^{\circ}C$ until day 7. In a culture-independent method using a polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) with partial 16S rRNA gene sequencing, Lb. algidus was predominant at $5^{\circ}C$ until day 7 and Lb. plantarum occupied predominantly at $25^{\circ}C$ until day 3, which is different from the results of the culture based method, indicating the both methods need to be combined for accuracy. Based on the culture-dependent method, Leu. mesenteroides might be responsible for the early and mid-phase of dongchimi fermentation.

The Effects of ICT Teaching Method on Interest in Home Economics, Consciousness on Traditional Culture, Achievement Test, and Performance Assessment in High School Borne Economics Instruction (한국 가정생활 문화 관련 단원의 학습에서 ICT활용 수업이 가정교과에 대한 흥미, 전통문화의식, 학업성취 및 수행평가 미치는 효과)

  • 하영희;유태명
    • Journal of the Korean Home Economics Association
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    • v.41 no.11
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    • pp.135-150
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    • 2003
  • This research was to verity the effects of ICT teaching method in high school home economics. The research questions for this study were as follows: 1. Is the ICT teaching method effective in increasing students' interest in home economics and consciousness on traditional culture in teaming the unit of ‘Korean traditional culture of home life’? 2. Is the ICT teaching method effective in improving students' achievement test and performance assessment in teaming the unit of ‘Korean traditional culture of home life’? This study is carried out with following procedure: developing the homepage and lesson plans for ICT teaching, constructing questionnaire, and testing its reliability, pre-testing, treatment for 8 weeks, and post-testing. Two groups were arranged for 8 weeks experiment from May 7,2001 through June 30,2001. Sixteen hours of ICT teaching and 8 hours of traditional lecture for experiment group whereas 8 hours of ICT teaching and 16 hours of traditional lecture for comparison group were input. SAS program was used for statistical analysis, and independent sample t-test and matched pairs t-test were peformed for answering research questions. The results of this study were as following: 1. Sixteen hours of ICT teaching and 8 hours of traditional lecture for experiment group was effective in increasing consciousness on traditional culture and performance assessment. 2. Eight hours of ICT teaching and 16 hours of traditional lecture for comparison group was not effective in learning home economics. This means that at least 2 hours of ICT teaching is demanding for effective learning. This study concluded that ICT teaching will be effectively applied in high school home economic with well developed ICT teaching materials. And home economics educators should continuously put effort in developing curricular, teaching materials, and teaching methods to raise students' interest in home economics.

Diversity of Marine Microbes by PCR-DGGE (PCR-DGGE를 이용한 해양미생물의 다양성 조사)

  • Kim, Yeong-Jin;Cho, Hyo-Jin;Yu, Sun-Nyoung;Kim, Kwang-Youn;Kim, Hyeung-Rak;Ahn, Soon-Cheol
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.40 no.6
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    • pp.356-361
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    • 2007
  • Recently, the development of various culture-independent identification techniques for environmental microbes has greatly enhanced our knowledge of microbial diversity. In particular, denaturing gradient gel electrophoresis (DGGE) of 16S rDNA fragments, generated using the polymerase chain reaction (PCR) is frequently used to examine the diversity of environmental bacterial populations. This method consists of direct extraction of the environmental DNA, amplification of the 200-600 bp 16S rDNA fragments with universal primers, and separation of the fragments according to their melting point on a denaturing gradient gel. In this study, we investigated the seaside microbial community in coastal areas of Busan, Korea, using culture-independent techniques. First, marine genomic DNA was extracted from seawater samples collected at Songjeong, Gwangahn, and Songdo Beaches. Then, PCR was used to amplify the bacterial 16S rDNA using universal primers, and DGGE was used to separate the amplified 500 bp 16S rDNA fragments. Finally, the tested 16S rDNA genes were further analyzed by sequencing. Based on these experiments, we found that DGGE analysis clearly showed variation among the regional groups. It can be used to monitor rapid changes in the bacterial diversity of various environments. In addition, the sequence analysis indicated the existence of many unculturable bacteria, in addition to Arcobacter, Pseudoaltermonas, and Vibrio species.

A Study on Application and Methodology of Korean Traditional Images based on Traditionalism in Korean Modern Furnitures (한국현대가구에 있어서 전통성에 입각한 한국적이미지의 적용과 방법론에 관한 연구)

  • 한경희
    • Korean Institute of Interior Design Journal
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    • no.13
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    • pp.102-110
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    • 1997
  • We have lost our true characteristics without being grown and development of our traditional beauty in state of drawing into a whirlpool as the environment of western cultrue. So, to be existed for self-sown capability of our traditional culture, we'll have to keep up with the unique and creative Korean traditional furniture design through the synchloization between 'Traditionalism in our already westernized life' and 'Korean identity in our already westernized life' and 'Korean identity in worldwide culture' based on independent position by correct view of worth, as for the escape from attitude of receive on western culture in recklessnese. Hereupon, first of all, after reviewof fornuclation backround and characteristics in traditional furniture to be established by an ancestor, based on this and extract the conceptual language, it was presented past published works as for the approaching method toward physical form aspect by use of pattern of modern access method. Secondly, it was the symbolic approaching from method based on traditional and cultural context. Gradually, the embodiment of traditional image, in today's features of our furniture loosing the particular cultural identify is very important aspect, and beside above mentioned two methods, it should be investigated as for the diversified approaching study. Thereafter, we'll have to establish the positionof our modern furniture in global wordwide, for seek the beauty being interrelated form past historical communications, under the circumstance of original and future-oriented value.

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Stimulation of Actinorhodin Production by Streptomyces lividans with Chromosomally-Integrated Antibiotic Regulatory Gene, afsR2

  • Kim, Chang-Yeong;Park, Hyeon-Ju;Kim, Eung-Su
    • 한국생물공학회:학술대회논문집
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    • 2003.04a
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    • pp.577-581
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    • 2003
  • Streptomyces lividans is one of the most commonly-used streptomyetes strain as a molecular cloning and expression host. Unlike its close relative S. coelicolor, however, S. lividans rarely produces secondary metabolite such as actinorhodin in a typical glucose-containing culture condition due to insufficient expression of some antibiotic regulatory genes including afsR2. Although multiple copies of afsR2 or a glycerol-specific culture condition stimulated actinorhodin production in S. lividans, both failed to stimulate actinorhodin production in S. lividans cultured in a typical glucose-containing medium. To generate a culture-condition-independent actinorhodin-overproducing S. lividans strain the afsR2 gene was integrated into the S. lividans TK21 chromosome via homologous recombination, followed by the genetic confirmation. This S. lividans strain produced a significant amount of actinorhodin in both glucose-containing liquid and plate cultures, with higher actinorhodin productivity compared to the S. lividans containing multiple copies of afsR2. These results suggest that a chromosomal integration of a single copy of an antibiotic regulatory gene is a promising method for the development of a stable antibiotic-overproducing streptomycetes strain.

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Democratic Leadership Practice to Construct Clan Organizational Culture in Family Companies

  • FAKHRI, Mahendra;SYARIFUDDIN, Syarifuddin;WINARNO, Alex;NURNIDA, Ida;HANUM, Syarifa
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.1
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    • pp.803-811
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    • 2021
  • A family business is a company where most of its capital and the management position is owned by family members (clan). The leader plays an important role in defining an organization, thus influencing the organization's success. A leader who has a leadership style based on family (clan) relation has the facilitator's role when conflict appears within the organization. This research aims to find the impact of the democratic leadership model on a family business that adopts the clan cultural organization. The independent variable of this research is the democratic leadership model. Meanwhile, the dependent variable is the clan culture within the organization. This research uses a quantitative method with a descriptive and causality type of research. This research population is PT Global Avionika Indonesia staff, where the data was acquired by distributing questionnaires using a saturated sampling technique. The finding in this research shows a positive and significant impact of the democratic leadership model on the clan culture within the organization PT Global Avionika. The determination test also points out that democratic leadership models affect 19.8 percent of the clan culture within the organization, and the rest of 80.2 percent were affected by other factors that were not covered in this research.