• The Journal of the Korea Contents Association
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• v.22 no.5
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• pp.779-787
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• 2022

This study aimed to analyze the relationships among the middle-aged women's gender role conflict, resilience, and psychological well-being, and to examine the mediating model of resilience on gender role conflict and psychological well-being. Data were collected from July 28 to August 5, 2021 for 302 middle-aged women aged 40-65 years. The Gender Role Conflict Scale specialized for middle-aged Korean women, internal traits subscale of Ahn's Resilience Scales, and Ryff's Psychological Well-being Scale were used for this study. PROCESS Macro 3.5 Model 4 was used to analyze the mediating effect. Results revealed that the middle-aged women's gender role conflict was negatively correlated with resilience and psychological well-being. And, the middle-aged women's resilience was positively correlated with psychological well-being. Because both the direct effect of the middle-aged women's gender role conflict on psychological well-being and its indirect effect through resilience were statistically significant, it was found that the middle-aged women's resilience was partially mediating their gender role conflict and psychological well-being.

• Korean Journal Plant Pathology
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• v.12 no.2
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• pp.191-196
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• 1996

위축, 황화, 총생 증상 등 전형적인 병징을 나타내는 phytoplasma에 감염된 식물에서 phytoplasma만을 특이적으로 검출하기 위하여 polymerase chain reaction(PCR) 방법을 이용하였다. Phytoplasma의 16S rRNA gence의 DNA 단편을 증폭하기 위하여 1.4 kb primers (forward, 5` -GTTGATCCTGGCTCAGGATT-3` 와 reverse, 5` -AACCCCGAGAACGTATTCACC -3`)를 사용하여 증폭한 결과, phytoplasma에 이병된 오동나무, 라일락 및 미역취에서는 약 1.4 kbp의 위치에서 특이 band가 검출되었으나 control로 사용한 건전주에서는 어떠한 band 검출되지 않았다. 위의 결과를 재확인 하기 위하여 약 0.5 kb의 primers(forward, 5` -ACGAAAGCGTGGGGAGCAAA-3` 와 reverse, 5` -GAAGTCGAGTTGCAGACTTC-3`)를 사용하여 증폭한 결과, 0.5 kb의 위치에서 특이 band가 검출되었으나 control로 사용한 건전주에서는 어떠한 band도 검출되지 않았다. Phytoplasma에 이병된 식물의 PCR 반응산물을 제한효소인 AluI으로 처리하 sruf과, 오동나무와 라일락에서는 동일한 band pattern을 나타내어 서로 유연관계가 가까운 phytoplasma인 것으로 생각되며, 미역취에서는 이들과는 다른 band pattern을 나타내어 오동나무와 라일락의 phytoplasma와는 유연관계가 먼 것으로 추측된다.

• Journal of agriculture & life science
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• v.43 no.6
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• pp.35-43
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• 2009

This study was conducted to examine the genetic variations and intraspecific relationships between 9 individuals of Panax ginseng C.A Meyer by using RAPD (Randomly Amplified Polymorphic DNA) analysis. The 34 primers out of 40 random primers were amplified for all tested plants. The 48 (40%) among 244 bands derived from 34 primers shown polymorphism, and the 72 (64%) rest of bands showed similar forms. By regional groups Sangju and Andong samples located in Kyungsang buk-do showed a high similarity. However, Punggi located in Kyungsang buk-do showed higher similarity with Jinan's of Junla buk-do. In this way, it did not show that Panax ginseng from the same area has similarities. In future study we need to more specific molecular phylogenetic analysis such as AFLP technology and gene sequencing with nuclear chloroplast DNA in all samples.

• Korean Journal of Plant Taxonomy
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• v.37 no.2
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• pp.143-153
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• 2007

In order to estimate the relationships among four taxa (Styrax japonicus, Styrax obassia, Styrax shiraianus and Pterostyrax hispidus) of two genus in the Styracaceae and their regional populations, RAPDs analysis was performed. Fifteen random primers generating 238 RAPD bands were enough to reveal differences in genotype bands. They were clustered into three groups by the UPGMA phenogram. The first group was Styrax japonicus populations, the second group was consisted of Styrax obassia populations and S. shiraianus populations, and third group was Pterostyrax hispidus population. The UPGMA phenogram based on RAPD analyses showed that Styrax obassia and S. shiraianus had the closest relationship among four taxa. Species as well as genera of the Korean Styracaceae were well discriminated by the RAPD analyses.

• Journal of Convergence for Information Technology
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• v.10 no.10
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• pp.236-245
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• 2020

The purpose of this study was to determine the associations among emotional burnout, resilience, job embeddedness, and organizational commitment, provide basic data for an effective dental care delivery system and manpower management, and promote organizational commitment in clinical dental hygienists. For data collection, convenience sampling was performed among dental hygienists working in Daejeon and Chungcheong and Jeolla Provinces from November 11 to December 30, 2019, and a self-administered questionnaire was used. Organizational commitment was positively correlated with resilience and job embeddedness and was negatively correlated with emotional burnout; emotional burnout was negatively correlated with resilience and job embeddedness; and resilience was positively correlated with job embeddedness. The factor most significantly affecting organizational commitment was emotional burnout, followed by resilience and job embeddedness. It is therefore necessary to give another consideration to a customized intervention strategy, which involves emotional burnout, resilience, and job embeddedness, in exploring a program that helps clinical dental hygienists maintain and manage organizational commitment efficiently.

• Journal of Korean Society of Forest Science
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• v.21 no.1
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• pp.47-51
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• 1974

In order to prove the similarity relationships between the basic species of oak through Electronic Data Processing System(EDPS) and numerical analysis, The analized species and datas were selected from the list of morphological observation in the thesis of T.B. Lee, 1961, "Phytogenetic study of the subgenus Lepidobalanus of the genus Quercus in Korea", and were coded by categories shown in Table 1. The value in the list were transformed into hundred percentage to standardize the observational value by each code into dimensionless. The similarity index between species were computed through formula of non-metric coefficient, $N_{jk}=\sum\limits_{i=1}^{n}\(\frac{{\mid}x_{ij}-x_{ik}{\mid}}{x_{ij}+x_{ik}}\)$, using the UNiVAC-1106, at National Computer Center. Quercus aliena, by analysis result, is most similar to Q. mongolica with the similarity index, 71.6 and Q. dentata is most far apart from Q. serrata in the relationship with index, 121.4. The above thesis of Professor, T. Lee, are closely similar with the result of this research study. But, their similar relationship are proved in quantity through numerical method in our research study. In addition, The relationships among Q. mongolica, Q. aliena and Q. serrata are found to be very similar, but Q. dentata to be enough far in similarity to other species by dendrogram shown at Fig. 1. The numerical classification through EDPS is found to be suitable method also applicable to the plant taxonomy.

• Journal of Mushroom
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• v.8 no.1
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• pp.27-32
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• 2010

This study was carried out to analyze the genetic relationships among 22 strains of Sparassis crispa, which were collected from various regions of worldwide. The cleaved amplified polymorphic sequence were obtained from the ribosomal DNA ITS regions of each strain. Based on the sequence analysis, the presence of five different groups were observed. Most strains shared the high nucleotide sequence similarity (about 90%) to each other, except only one strain, KACC50866. Nucleotide sequence similarity of KACC50866 was below 10% to other strains, indicating the genetic relatedness of strain KACC50866 was low compared to other strains. More works such as mitochondria genome analysis should help to determine the precise genetic diversity of S. crispa strains.

• Korean Journal of Plant Taxonomy
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• v.38 no.1
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• pp.17-29
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• 2008

Phylogenetic relationships were examined for 17 taxa of Lycoris by RAPD analysis. The length of the amplified DNA fragments ranged from 300 bp to 1,700 bp. 57 scorable RAPD markers were observed from PCR reactions with five random oligoprimers. The analysis by UPGMA sepatated the examined taxa of Lycoris into were clusters. First group was comprised of ten taxa of L. chinensis var. sinuolata, L. sanguinea var. koreana, L. uydoensis, L. flavescens, L. radiata var. pumila, L. radiata, L. squamigera, L. chejuensis, L. aurea and L. guangxiensis, second group of L. haywardii, L. sprengeri, L. rosea, L. straminea and L. houdyshii, third group of outgroup of Narcissus tazetta var. chinensis and Crinum asiaticum var. japonicum. From the viewpoint of cytological characters such as polyploidy and karyotype, the RAPD analysis was very useful to show the relationship among the intraspecific taxa of Lycoris.

• Korean Journal of Plant Taxonomy
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• v.36 no.1
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• pp.21-40
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• 2006

We examined nrDNA ITS sequences from 16 taxa of Polygonum sect. Persicaria(Polygonaceae) in Korea to infer relationships among the taxa within the section. A neighbor-joining tree obtained from the analysis of the ITS sequences suggest that the ITS region was useful inferring the phylogenetic relationships among the taxa. The neighbor-joining tree indicates that P.amphibium is clearly separated from the other Korean taxa. The tree also reveals the presence of five major groups in the Korean taxa of the section; 1) P. lapathifolium var. lapathifolium, 2) P. persicaria and P. viscoferum, 3) P. orientale and P. viscosum, 4) P. japonicum and 5) a group including the remaining taxa. these relationships depicted on the ITS tree are largely congruent with those inferred from morphological and anatomical characters.

• Korean Journal of Plant Resources
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• v.13 no.2
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• pp.104-110
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• 2000

To analyse the genetic relationship and intraspecific variations among the Eleutherococcus senticosus population, the polymerase chain reaction(PCR) was performed total genomic DNAs of 10 E. senticosus collections by random 10 primers. The genetic diversity and genetic distance among 10 collections of Eleutherococcus spp. were used to describe the dendrogram showing phylogenic relationship. Ten collections were classfied into two group(group I, II) at the similarity coefficient value of 0.50. Group I included E. senticosus of Bukhado(Japanese), youngwal(Korea), E. seoulense, and E. chiisanesis while group II included several internal and Russia collection. The range of polymorphism was from 66.7 to 90.9% in 87 amplified DNA fragments. The similarity value of all collections ranged from 0.41 to 0.92. The average of genetic distance was 0.61.