• 대한수의학회지
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• 제55권3호
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• pp.191-197
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• 2015

Escherichia (E.) coli is commensal bacteria found in the intestine; however, some pathogenic strains cause diseases in animals and humans. Although E. coli does not typically produce hydrogen sulfide ($H_2S$), $H_2S$-producing strains of E. coli have been identified worldwide. The relationship between virulence and $H_2S$ production has not yet been determined. Therefore, characteristics of $H_2S$-producing isolates obtained from swine feces were evaluated including antibiotic resistance patterns, virulence gene expression, and genetic relatedness. Rates of antibiotic resistance of the $H_2S$-producing E. coli varied according to antibiotic. Only the EAST1 gene was detected as a virulence gene in five $H_2S$-producing E. coli strains. Genes conferring $H_2S$ production were not transmissible although the sseA gene encoding 3-mercaptopyruvate sulfurtransferase was detected in all $H_2S$-producing E. coli strains. Sequences of the sseA gene motif CGSVTA around Cys238 were also identical in all $H_2S$- producing E. coli strains. Diverse genetic relatedness among the isolates was observed by pulsed-field gel electrophoresis analysis. These results suggested that $H_2S$-producing E. coli strains were not derived from a specific clone and $H_2S$ production in E. coli is not associated with virulence genes.

• 한국콘텐츠학회논문지
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• 제13권1호
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• pp.269-277
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• 2013

본 연구에서는 결혼이주여성들이 사회적, 문화적, 역사적 '과거성'이라는 이주의 짐꾸러미를 안은 채 새로운 공간으로의 이주 후 자신들의 체험들을 어떻게 주체적 행위자로 재구성해 나가는지를 포착하는 것이 연구의 목적이다. 현상학적 연구방법을 적용하여 결혼이주여성이 경험하게 되는 생활세계의 체험을 신체성, 공간성, 시간성, 관계성 차원으로 분석하였다. 분석결과, 결혼이주여성의 신체성은 피부색이나 문화적인 면에서 차이가 있을 뿐 결코 차별이 대상이 아니라고 생각하며, 자신의 몸에 대한 당당함으로 현실의 편견을 극복하고자 노력한다. 결혼이주여성의 공간성은 새로운 사회문화적 공간을 재구성하는 '공간적 전환(spatial turn)을 시도한다. 결혼이주여성의 시간성은 현실의 탓만을 하는 수동적 주체가 아니라 보다 적극적으로 미래를 준비하고자 하는 인식을 하고 있다. 결혼이주여성의 관계성은 확장된 인간관계를 바탕으로 자신의 영역을 개척하는 삶을 보인다.

• Journal of Information Science Theory and Practice
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• 제6권2호
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• pp.46-61
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• 2018

The mobile social networking application Instagram is a well-known platform for sharing photos and videos. Since it is folksonomy-oriented, it provides the possibility for image indexing and knowledge representation through the assignment of hashtags to posted content. The purpose of this study is to analyze how Instagram users tag their pictures regarding different kinds of picture and hashtag categories. For such a content analysis, a distinction is made between Food, Pets, Selfies, Friends, Activity, Art, Fashion, Quotes (captioned photos), Landscape, and Architecture image categories as well as Content-relatedness (ofness, aboutness, and iconology), Emotiveness, Isness, Performativeness, Fakeness, "Insta"-Tags, and Sentences as hashtag categories. Altogether, 14,649 hashtags of 1,000 Instagram images were intellectually analyzed (100 pictures for each image category). Research questions are stated as follows: RQ1: Are there any differences in relative frequencies of hashtags in the picture categories? On average the number of hashtags per picture is 15. Lowest average values received the categories Selfie (average 10.9 tags per picture) and Friends (average 11.7 tags per picture); for highest, the categories Pet (average 18.6 tags), Fashion (average 17.6 tags), and Landscape (average 16.8 tags). RQ2: Given a picture category, what is the distribution of hashtag categories; and given a hashtag category, what is the distribution of picture categories? 60.20% of all hashtags were classified into the category Content-relatedness. Categories Emotiveness (about 4.38%) and Sentences (0.99%) were less often frequent. RQ3: Is there any association between image categories and hashtag categories? A statistically significant association between hashtag categories and image categories on Instagram exists, as a chi-square test of independence shows. This study enables a first broad overview on the tagging behavior of Instagram users and is not limited to a specific hashtag or picture motive, like previous studies.

• 한국콘텐츠학회논문지
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• 제18권10호
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• pp.584-595
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• 2018

본 연구의 목적은 초등학생의 체육수업 기본심리욕구 충족정도가 학교행복감과 신체적 라이프스타일에 미치는 영향을 살펴보는 것이다. 이를 위해 I 도시, 5개 초등학교 300명의 초등학생에게 설문지가 배부되었다. 불성실하게 응답한 설문지 22부를 제외한 총 278부의 설문지가 자료분석에 사용되었다. 자료분석을 위해 기술분석, 탐색적 요인분석, 상관관계분석, 다중회귀분석이 사용되었다. 상관관계분석 결과, 체육수업 기본심리욕구의 유능감과 관계성은 중 고강도 신체활동 및 학교행복감의 모든 하위변인들과 정적인 상관관계를 나타냈다. 다중회귀분석결과, 기본심리욕구의 유능감은 자기존중감과 교사관계 학교행복감에 정적인 영향을 미쳤으며, 중 고강도 신체활동에 정적인 영향을 미쳤다. 기본심리욕구의 관계성은 학교행복감의 모든 하위요인에 정적인 영향을 미쳤다. 본 연구의 결과에 따르면, 체육수업 기본심리욕구의 충족은 학교행복감의 중요한 요소이며, 신체적으로 적극적인 학생으로 이끄는 중요한 심리기전으로 밝혀졌다. 본 연구를 통해 초등학교 체육수업의 가치가 더욱 부각되기를 바란다.

• The Plant Pathology Journal
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• 제21권2호
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• pp.106-110
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• 2005

Sclerotinia sclerotiorum attacks most of the vegetable crops in the Jordan valley. Twenty-five samples/isolates were obtained in a complete coverage of that region. They were characterized for their mycelium incompatibility, and specific gene amplified using the primer SSREV/SSFWD. All isolates gave similar single band around 278 bp. Thirteen isolates were completely incompatible with the other 12 ones. The latter ones fell into four subgroups of mycelium incompatibility. RAPD analysis using three primers (OPA-2, OPA-10, and OPA-18) clustered the 25 isolates into subgroups in agreement with their morphological separation, indicating close correlation between amplified gene(s) and the gene(s) of incompatibility. All highly virulent isolates were among the group of 13, indicating a well established genomic type pathogen in this region.

• 수산해양교육연구
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• 제26권5호
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• pp.1058-1074
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• 2014

The purpose of this study was to examine the relationship between psychological basic needs(autonomy, competence, relatedness) based on self-determination theory and career indecision of female college students. The participants of this study were 1,060 female college students in B city. To analyze data, cannonical correlation analysis was performed. The results of this study are as follows: First, the level of psychological basic needs was generally high among research participants and there were significant differences depending on the grades. Second, the level of career indecision was generally low and there were also significant differences depending on the grades. Third, the result of cannonical correlation analysis showed significant negative relationship between psychological basic needs and career indecision. Discussions and suggestions related to the results were provided.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2004년도 춘계학술대회 학술발표 논문집 제14권 제1호
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• pp.273-276
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• 2004

Genome-scale expression data provides us with valuable insights about organisms, but the biological validation of in-silico analysis is difficult and often controversial. Here we present a new approach for integrating previously established knowledge with computational analysis. Based on the known biological evidences, IGAM (Integrated Gene Association Matrix) automatically estimates the relatedness between a pair of genes. We combined this association knowledge to the regulatory network modeling and fuzzy clustering in yeast 5. Cerevisiae. The result was found to be more effective for extracting biological meanings from in-silico inferences for gene expression data.

• The Plant Pathology Journal
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• 제19권5호
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• pp.221-226
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• 2003

Twenty universal rice primers (URPs) were used to detect PCR polymorphisms in 25 isolates of six different Alternaria species producing host specific toxins (HST). Eight URPs could be used to reveal PCR polymorphisms of Alternaria isolates at the intra- and inter-species levels. Specific URP-PCR polymorphic bands that are different from those of the other Alternaria spp. were observed on A. gaisen and A. longipes isolates. Unweighted pair-group method with arithmetic mean (UPGMA) cluster analysis using 94 URP polymorphic bands revealed three clustered groups (A. gaisen group, A. mati complex group, and A. logipes group).

• Journal of Species Research
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• 제1권1호
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• pp.100-103
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• 2012

Nutria Myocastor coypus is one of a well known invasive riparian mammal found species around world from North America to Eurasia and Africa. In South Korea, feral nutrias inhabit areas from the Nakdonggang and Namgang (River) to their tributaries and Upo Wetland where they have had devastating effects on environment. Nevertheless, there has been little research about nutrias in Korea. This study is to analyze the genetic structure of the nutria population in the Upo Wetland and identify the origin of the source populations. Twenty individuals from the Upo Wetland were genotyped using 25 microsatellite loci. When compared with another introduced population, that of the Blackwater Nation Wildlife Refuge in U.S., the Upo population contains considerable genetic variations. Tests for Hardy-Weinberg equilibrium and Bayesian clustering analysis suggest the Upo population is genetically structured and has at least two source populations. This preliminary study presents the need for further in-depth studies about this species which should combine genetic and ecological studies.

• 아동학회지
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• 제12권2호
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• pp.5-17
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• 1991

The purpose of the present study was to investigate developmental trends and relationships between justice and friendship. Four different interviews were administered individually to fifty 4-to 8-year old children. In the Justice domain, the interviews consisted of open-ended questions devised to investigate the children's understanding of justice and a hypothetical story dilemma based on Damon(1977). In the friendship domain, the interviews consisted of open-ended questions based on Bigelow(1975; 1977) and Damon(1977) and a hypothetical story dillema based on Selman(1981). The developmental stage of each concept was determined through content analysis of the responses each child. Statistical analysis of obtained data was by percentage and Goodman-Kruskal's ${\gamma}$. * The results showed that children's conceptions of justice and of friendship developed in an age-related manner during early and middle childhood. While there was a significant correlation between children's conceptions of justice and friendship, this result was due to age-relatedness. The results of the present study support a domain specific approach to social cognition.