• Journal of Plant Biotechnology
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• 제37권2호
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• pp.186-195
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• 2010

In most self-incompatible plant species, recognition of self-pollen is controlled by a single locus, termed the S-locus. The self-incompatibility (SI) system in Brassica is controlled sporophytically by multiple alleles at a single locus, designated as S, and involves cell-cell communication between male and female. Two highly polymorphic S locus genes, SLG (S locus glycoprotein) and SRK (S receptor kinase), have been identified, both of which are expressed predominantly in the stigmatic papillar cell. Gain-of-function experiments have demonstrated that SRK solely determines S haplotype-specificity of the stigma, while SLG enhances the recognition reaction of SI. The sequence analysis of the S locus genomic region of B. campestris (syn. rapa) has led to the identification of an anther-specific gene, designated as SP11/SCR, which is the male S determinant. Molecular analysis has demonstrated that the dominance relationships between S alleles in the stigma were determined by SRK itself, but not by the relative expression level. In contrast, the expression of SP11/SCR from the recessive S allele was specifically suppressed in the S heterozygote, suggesting that the dominance relationships in pollen were determined by the expression level of SP11/SCR. Furthermore, recent studies on recessive allele-specific DNA methylation of Brassica self-incompatibility alleles demonstrate that DNA methylation patterns in plants can vary temporally and spatially in each generation. In this review, we firstly present overview of self incompatibility system in Brassica and then describe dominance relationships in Brassica self- incompatibility regulated by allele-specific DNA methylation.

• Journal of Animal Science and Technology
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• 제65권5호
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• pp.1094-1104
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• 2023

Aggression in horses may cause serious accidents during riding and non-riding activities. Hence, predicting the temperament of horses is essential for selecting suitable horses and ensuring safety during the activity. In certain animals, such as hamsters, plasma melatonin concentrations have been correlated with aggressive behavior. However, whether this relationship applies to horses remains unclear. To address this research gap, this study aimed to evaluate differences in the plasma melatonin concentrations among horses of different breeds, ages, and sexes and examine the correlation between plasma melatonin concentrations and the temperament of the horses, including docility, affinity, dominance, and trainability. Blood samples from 32 horses were collected from the Horse Industry Complex Center of Jeonju Kijeon College. The docility, affinity, dominance, and trainability of the horses were assessed by three professional trainers who were well-acquainted with the horses. Plasma melatonin concentrations were measured using an enzyme-linked immunosorbent assay. The consequent values were compared between the horses of different breeds, ages, and sexes using a three-way analysis of variance and least significant difference post hoc test. Linear regression analysis was employed to identify the relationship between plasma melatonin concentrations and docility, affinity, dominance, and trainability. The results showed that the plasma melatonin concentrations significantly differed with breeds in Thoroughbred and cold-blooded horses. However, there were no differences in the plasma melatonin concentrations between the horse ages and sexes. Furthermore, plasma melatonin concentrations did not exhibit a significant correlation with the ranking of docility, affinity, dominance, and trainability.

• 벤처창업연구
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• 제8권3호
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• pp.67-76
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• 2013

본 연구에서는 예비기술창업자들을 대상으로 창업지원서비스에 대한 만족도를 측정하고, 세부 요인들의 상대적 중요도를 분석하였다. 만족도 측정에는 물리적 설비 지원, 인적자원 지원, 마케팅 지원, 재무 회계 지원, 제품개발 지원 등 5개의 요인을 사용하였다. 만족도 측정결과, 재무 회계 지원 서비스, 물리적 설비 지원 서비스 순으로 만족도가 높게 나타났다. 다중공선성이 존재할 때, 회귀분석을 통해 독립변수들의 상대적 중요도를 파악하는 데는 문제가 있다는 지적이 있어 우세분석을 이용하여 상대적 중요도를 분석하였다. 그리고 그 결과를 회귀분석을 통해 구한 상대적 중요도와 비교해 보았다. 우세분석 결과에서는 제품개발 지원의 상대적 중요도가 가장 높게 나타난 반면, 회귀분석 결과에서는 물리적 설비 지원에 대한 상대적 중요도가 가장 높은 것으로 나타났다. 이러한 비교를 통해 독립변수들 간의 상대적 중요도 차이를 확인하였다. 창업동기별로 창업지원서비스에 대한 만족도와 상대적 중요도를 비교해본 결과에서는 필요형 창업과 기회형 창업별로 만족도와 상대적 중요도가 다르다는 사실도 확인할 수 있었다. 마지막에는 이를 바탕으로 연구의 시사점과 한계점을 제시하였다.

• 한국작물학회지
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• 제42권5호
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• pp.626-631
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• 1997

옥수수의 숙기가 서로다른 8개의 자식계통과 이들간의 이면교배에 의하여 생산된 28개 $F_1$을 공시하여 등숙기간의 유전분석을 실시하였던 바 그 결과는 다음과 같다. 1. 초기등숙기간에서는 상가적 효과가 큰 부분우성으로 추정되었으며 유효등숙기간은 비대립 유전자의 상호작용이 없는 초우성으로 추정되었다. 2. 총등숙기간과 흑색층 출현일수는 상가적 효과가 비상가적 효과보다 큰 부분우성으로 추정되었다. 3. 유전자 분포상태는 유효등숙기간과 총등숙기간에서 양친들 중 FR25는 열성유전자의 관여도가 크게 나타났으며 YUBC208은 열성유전자로서의 관여도가 크게 작용하였다. 4. 유효등숙기간과 총등숙기간에 관여하는 유효 유전자수는 최소한 5개 정도가 있는 것으로 추정되었다.

• 한국환경복원기술학회지
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• 제7권2호
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• pp.62-67
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• 2004

Forest community structure analysis in the Seooreung area, Goyang-si was carried out to supply basic data for reasonable management and conservation. The forest vegetation of the Seooreung area was classified into Alnus japonica community, Quercus mongolica - Carpinus laxiflora community, Quercus serrata community, and Pinus densiflora community. The dominant species in the area were in the order of Quercus mongolica, Quercus serrata, Robinia pseudoacacia, Quercus variabilis, Quercus aliena, Styrax japonica, Pinus rigida, and Alnus hirsuta. According to the DBH analysis result, Pinus densiflora was dominance species in Tomb area. Pinus rigida had a density of normal distribution style in the entire forests, therefore, their dominance are expected to continue for now. However, Quercus serrata is expected to extend their influence in the future in competition with Pinus rigida. Quercus mongolica had a density of normal distribution style in the Quercus mongolica - Carpinus laxiflora community, therefore, their dominance are expected to continue for now. Carpinus laxiflora is expected to extend their influence in the future in competition with Quercus mongolica. The relationship between the distribution of dominant species of forest vegetation and soil condition in Seooreung area was investigated by analyzing soil nutrition and moisture gradient. Alnus hirsuta community was distributed in the mesic and medium nutrition area and Quercus mongolica - Carpinus laxiflora community in the serix and relative good nutrition area. Pinus densiflora community was distributed in the serix and poor nutrition area and Quercus serrata community in the subserix and medium nutrition area.

• 한국IT서비스학회지
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• 제16권1호
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• pp.1-26
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• 2017

Keeping good, talented people is one of the most significant factors in a company's success. HR analytics is an important area for applying big data analysis techniques to human resources. It provides organizational insight that enables effective management of employees, allowing management to reach their business goals quickly and efficiently. Job satisfaction and employee turnover analysis are the keys to HR analytics. Job review web services have been becoming popular. Because people exchange information about job satisfaction and turnover through these web services, useful information about HR Analytics is accumulated on the job review web sites. In this paper, we identified factors of employee retention by analyzing a Job Satisfaction/Retention group, and the factors of employee turnover by analyzing a Job Unsatisfaction/Turnover group. In order to do this, we first classified employees according to whether their self-reported job satisfaction or turnover was true. We collected and analyzed data from Jobplanet, a popular job review site. Through dominance analysis and LDA topic modeling, we found major factors, topics, and keywords of the classified groups by IT, service, and manufacturing domains. Our approach is a novel model to apply the analysis of reviews and text mining to the HR domain, and it will be practically helpful for setting new strategies that improve job satisfaction.

• 컴퓨터교육학회논문지
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• 제16권1호
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• pp.11-22
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• 2013

최근 새로운 기기들의 등장으로 인터넷으로 인한 중독보다 새로운 기술들에 대한 중독이 더욱 심각한 문제를 야기하고 있다. 기존 연구에서 인터넷과 휴대폰 중독을 각각 다루고 있기는 하지만, 기술간 중독에 미치는 변인들의 상대적 중요도와 인과관계를 파악한 연구는 드물다. 본 연구는 인터넷과 휴대폰 중독에 영향을 미치는 변인간의 관계와 두 중독의 차이를 시간 관점에서 분석한다. 청소년들을 대상으로 부모나 친구와 같은 환경적 변인이 시간관이나 기기 사용시간과 같은 개인 변인에 미치는 영향과 개인 변인이 인터넷과 휴대폰 중독에 미치는 영향을 분석한다. 또한 인터넷과 휴대폰 중독에 영향을 미치는 변인간의 상대적 중요도를 구한다. 이를 위해 1,420명의 초 중 고등학생들에게 설문을 실시하고 구조 방정식 모형과 부데스크 (Budescu) 교수의 우세 분석을 실시한다. 이를 통해 인터넷과 휴대폰 중독간의 사용방법의 차이와 중요 변인을 기술하여 중독의 변화와 새로운 기술 중독에 대한 대처방법을 제언한다.

• 한국식품조리과학회지
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• 제29권5호
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• pp.533-541
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• 2013

The purpose of this article was to study the influence of tangible clues of raw-fish restaurants on consumers' emotional responses and repurchasing behavior in eastern area of Kangwon-province. In this study frequency analysis, reliability analysis, factor analysis and path analysis(SEM) were applied to analyze the data. Through path analysis tangible clues' performances had generally significant influences upon consumers' emotional responses to buy products of raw-fish restaurants. According to the results, exterior facility had positive influence on pleasure(p<0.001) and arousal(p<0.01). Interior facility had positive influence on pleasure(p<0.001) and arousal(p<0.001), but negative on dominance(p<0.01). And the others had positive influence on pleasure(p<0.05). Press copy had positive influence on pleasure(p<0.001) and arousal(p<0.001). And Pleasure and arousal had positive influence on repurchasing behavior(p<0.001). But Dominance didn't have significant influence on repurchasing behavior. As a result, we studied that the tangible clues was an effective marketing tactic to maintain and increase consumers' positive emotional reponses to repurchase at restaurants. Therefore it is finally needed that dining-out corporations manage tangible clues in a customer-maintaining without additional costs, and especially to use mixing tangible clues each other in some suitable condition.

• 생명과학회지
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• 제7권1호
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• pp.59-65
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• 1997

In this experiment, gene actions were analysized for seven barley parents in order to obtain basic information on their genetic improvement by diallel crosses. The results obtained were summarized as follows. In analysis of variance, additive, dominant, maternal and reciprocal effects were observed significantly for culm length, tiller number, number of spiked per plant, culm diameter, awn length, leaf width, number of grains per spike, and 1000 grain weight. Over-dominance was shown by Vr-Wr graphic analysis in five characters such as tiller number, number of spikes per plant, length of flag leaf, number of grains per spike, and 1000 grain weight, and partial dominance in four characters such as culm length, culm diameter, awn length, and leaf width. Component of genetic varience analyzed for four characters such as culm diameter, awn length, length of flag leaf, and leaf width showed that additive effects were higher than dominant effects. Culm length, tiller number, number of spikes per plant, number of grains per spike, and 1000 grain weight showed dominant effects higher than additive effects. The narrow-sense heritability for awn length, leaf width, and number of grains per spike showed high values as more than 0.62, while broad-sense heritability for culm length, number of spikes per plant, culm diameter, awn length, leaf width, number of grains per spike, and 1000 grain weight showed high values as more than 0.65.

• 과학교육연구지
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• 제36권1호
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• pp.14-21
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• 2012

본 연구에서는 뇌 활용 성향과 수학 및 과학 학업성취도 간의 관계를 분석하고자 중학생 131명(남: 74, 여: 57)을 대상으로 뇌 활용 성향검사를 실시하고 수학 및 과학 과목의 성적을 조사하였다. 수학 성적과 과학 성적에 따라 집단을 구분하였을 때 수학 성적 상위집단과 과학 성적 상위집단 모두 좌하뇌를 주로 활용하는 학생의 수가 가장 많은 것으로 나타났다(수학: 33.8%, 과학: 35.0%). 반면에, 수학 성적 하위집단과 과학 성적 하위집단은 우하뇌를 주로 활용하는 학생의 수가 가장 많은 것으로 나타났다(수학: 38.7%, 과학: 36.1%). 수학 및 과학 성적 상위집단과 하위집단간에 뇌 활용 성향 점수의 차이를 분석한 결과 과학성적 상위집단과 하위집단 간에는 좌하뇌 점수(p<.05)에서 차이를 나타내었다. 상관도 분석결과 수학 성적과 과학 성적 모두 좌하뇌 점수(수학: r=.28, 과학: r=.26)에서 가장 높은 상관도를 보였으며 좌상뇌 점수(수학: r=.18, 과학: r=.24)와 두 번째로 높은 상관도를 보였다. 이러한 결과는 수학 및 과학 과목에서 우수한 성적을 얻는 것이 좌하뇌 및 좌상뇌의 활용 성향과 연관성이 있다는 것을 보여주는 것으로 수학 및 과학 과목의 평가방법의 개발 시 이러한 특성을 고려할 필요성이 있을 것이다.