• 제목/요약/키워드: trait evaluation

검색결과 184건 처리시간 0.031초

홀스타인의 국제유전평가를 위한 모형개발에 관한 연구 (Development of International Genetic Evaluation Models for Dairy Cattle)

  • 조광현;박병호;최재관;최태정;최연호;이승수;조충일
    • Journal of Animal Science and Technology
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    • 제55권1호
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    • pp.1-6
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    • 2013
  • 본 연구는 국내 국가단위 평가결과의 문제점을 해결하면서 유전 능력평가시스템을 고도화하고 우리나라가 국제유전평가에 참여하기 위하여 국제평가기구에서 요구하는 검증작업을 통과하기 위하여 수행하였다. 본 연구에 이용된 자료는 농협중앙회 젖소개량부에서 수집한 분만일이 2001년부터 2009년까지의 검정성적으로 총 1,416,589개이며 산차는 5산으로 제한하였으며, 누적착유일은 75~305일로 제한하였고, 전체 혈통자료는 2,279,741개이며 부모를 갖는 개체는 535,409개이고 아비소는 2,467두로 구성되어 있는 기록들을 이용하였다. 유량, 유지방, 유단백에 대한 육종가는 신규로 개발한 다형질모형(Multiple traits model)을 이용하여 육종가를 구하였으며 기초작업은 SAS version 9.2와 R프로그램을 이용하였으며 유전모수를 추정하기 위하여 VCE 6.0을 이용하였다. 전반적으로 유전적 추세는 꾸준히 지속되어 오고 있으며 산차별 차이가 두드러지게 나타나지는 않았다. 유지방을 제외하고 유량과 유단백 형질의 추세가 잘 추정되었음을 알 수 있다. 유전평가분석결과 상위 1000두의 랭킹안에 최근의 생년을 갖는 딸소가 기존에 사용한 모수로 분석한 결과보다 딸소가 증가했음을 알 수 있다. 국제유전평가모형을 통해 새로 평가한 결과 씨수소상위 100두를 기존 평가모형에 의한 평가결과와 비교했을 때, 2006년생은 23두에서 28두로 2007년생은 12두에서 20두로 2008년생은 2두에서 8두로 증가하였다. 이는 최근의 딸소나 씨수소의 유전능력이 우수함에도 불구하고 상위에 랭크되지 못했던 결과가 새 모형의 적용으로 보완하여 새로운 평가분석에 적용할 수 있을 것으로 판단된다. 따라서 기존의 단형질 모형 대신 다형질 모형을 이용한 분석방법으로 평가를 실시하고 국제유전평가에도 다형질 모형을 이용한 육종가를 제시함으로써 다형질 선발의 정확도가 향상될 수 있을 것이다.

얼굴 매력성과 의복 적절성이 특질 판단에 미치는 영향 (The Effects of Facial Attractiveness and Appropriateness of Clothing on The Trait Evaluation)

  • 정명선;김재숙
    • 대한가정학회지
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    • 제39권2호
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    • pp.131-146
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    • 2001
  • The main purpose of this study, based on implicit personality theory and attribution theory, was to examine whether there exist the physical attractiveness stereotype, "what is beautiful is good," in the present Korea, and if exist, what is the content of it. The index of the physical attractiveness of this study was the facial attractiveness judged by 30 female university students. The appropriateness of clothing was manipulated by 4 types of clothing perceived appropriate for two assumed situations by female university students. Three female faces having high, medium, and low attractiveness were simulated with the same body dressed four types of clothing using CAD system, and a total of 12 stimulus persons were created. A total of 524 male and female(262 of male, 262 of female) university students from 3 universities in Kwangju, Korea were participated as subjects in this study. The design for the experiment was a 3$\times$4$\times$2 randomaized factorial, with three levels of facial attractiveness (high, medium, low), and four types attire(formal-masculine, formal-feminine, casual-masculine, casual-feminine), two kinds of context (job interview, dating) in which perceptions were occurred. The data were analysed using factor analysis, MANOVA, t-test and Duncan test. The results were as follows: 1. The facial attractiveness exerted significant positive effects on the evaluation of sociability, adjustment, and potency of her in both of two assumed situations (p<.001, respectively). 2. The appropriateness of stimulus person′s clothing had significant positive erect on the evaluation of sociability of stimulus person in dating context(p<.001). 3. The gender of subjects did not influenced the trait evaluations in both of two assumed situations.

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취학 전 아동의 성격특성과 부모의 양육태도가 아동의 의복행동에 미치는 영향 (The Effects of Preschool Children's Personality Traits and Parental Child-Rearing Attitudes on Clothing Behaviors)

  • 이명희
    • 복식
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    • 제49권
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    • pp.155-172
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    • 1999
  • The purpose of this study was to investigate the effect of children's personality traits and parental child-rearing attitudes on clothing attitudes and color evaluation of preschool children. The subjects for this study consisted of 360 five-year-old children who were attending a preschool and their parents in Cheju Island Korea. Employed mothers had significantly higher score on love acceptance attitude than unemployed mothers did. Female children had more conservative attitude on clothing sex-role than male children did There were no significant gender differences in parental child-rearing attitudes. There were significant relationships between gender and preferred clothing colors. Male children were more likely to prefer blue red, green, and prussian blue for the colors of clothing than were female children while female children liked pink yellow and orange more than male children. Boys selected blue and girls selected pink as the most preferred clothing color. Overall preschool children chose red as the most preferred color black as the most disliked color. The children's sex identification by clothing color was highly consistent with the conservative attitude of adults for all colors. That is preschool children identified pink red and yellow with female color while prussian blue blue and green with male color. Clothing interest of boys was influenced by the mother's state of employment and academic trait. The boys high in academic trait and whose mothers did not have job were high in clothing interest. Clothing management of boys was influenced by emotionality and love acceptance rearing Ttitude. Clothing independednce of boys was influenced by authority control rearing attitude Clothing sex-role of boys was influenced by familism trait. The boys high in familism trait had open-hearted attitude in clothing sex-role. Clothing interest of girls was influenced by academic trait clothing management by sociality clothing independence by emotionality and clothing satisfaction by familism trait. Therefore the more positive personality children had the higher clothing interest and the more desirable clothing attitudes they had.

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Estimation of Additive and Dominance Genetic Variances in Line Breeding Swine

  • Ishida, T.;Kuroki, T.;Harada, H.;Fukuhara, R.
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권1호
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    • pp.1-6
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    • 2001
  • Additive and dominance genetic variances were estimated for purebred Landrace selected with line breeding from 1989 to 1995 at Miyazaki Livestock Experiment Station, Kawaminami Branch. Ten body measurements, two reproductive traits and fifteen carcass traits were analyzed with single-trait mixed model analysis. The estimates of narrow-sense heritabilities by additive model were in the range of 0.07 to 0.46 for body measurements, 0.05 to 0.14 for reproductive traits, and 0.05 to 0.68 for carcass traits. The additive model tended to slightly overestimate the narrow-sense heritabilities as compared to the additive and dominance model. The proportion of the dominance variance to total genetic variance ranged from 0.11 to 0.91 for body measurements, 0.00 to 0.65 for reproductive traits, and 0.00 to 0.86 for carcass traits. Large differences among traits were found in the ratio of dominance to total genetic variance. These results suggested that dominance effect would affect the expression of all ten body measurements, one reproductive trait, and nine carcass traits. It is justified to consider the dominance effects in genetic evaluation of the selected lines for those traits.

Identification of Promising Bivoltine Breeds based on Multiple Trait Analysis for Future Breeding Program in West Bengal, India

  • Chanda, Subhra;Saha, Lal Mohan;Das, Nirvan Kumar;Kar, Niharendu Bikash;Bindroo, Bharat Bhusan
    • International Journal of Industrial Entomology and Biomaterials
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    • 제23권2호
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    • pp.239-243
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    • 2011
  • Thirty five bivoltine breeds were acclimatized under controlled condition for three years during two seasons to evaluate their efficiency in Seri industry of tropical region. Out of thirty five ten breeds had been short listed based on ranking for individual trait. Three breeds out of those ten selected breeds viz. SK6, NB18 and B.Con.4 ranked top in respect of overall performance. The ten breeds based on average Evaluation Index value > 50 considering twelve economically important traits are the resource material for future course of breeding program in West Bengal.

간호학생이 임상실습시 느끼는 불안의 정도와 불안야기 상황연구 (Nursing Students Anxiety level and Perceptions of Anxiety-Producing Situations in the Clinical Setting)

  • 박춘자
    • 한국간호교육학회지
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    • 제3권
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    • pp.34-45
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    • 1997
  • Aspects of nursing student's clinical experiences are anxiety provoking. High anxiety may contribute to decreased learning. The purpose of this study was to identify the level of anxiety and potentially anxiety-producing clinical experience, the relation between the level of anxiety and their Trait-Anxiety and State-Anxiety. Finally, it is aimed at getting preparing data for guidance of students which can enhance learning effect of students for clinical experience. The samples of this study were 36 junior students(1 semester experience) and 44 senior students (3 semester experience) from Junior College of Nursing in Seoul on September 1996. The tools of this study were two kinds ; questionare of Spielberg' STAI measuring State and Trait-Anxiety, and author's for measuring the level of Anxiety producing situations and 10cm visual analogue scale was also used for measuring self stated level of anxiety on clinical setting. The collected data were analyzed by SPSS using percentage, t-test, ANOVA and Pearson correlation coefficient. The results of this study were as follows : 1. The self perception of anxiety level was 4.3/10cm and the level of anxiety in clinical setting situations was 3.5/5. 2. Among 20 questions for perception of anxiety-producing situations in the clinical setting. 'deficit of nursing knowledge' was the highest item(4.18), 'vagueness of role'(4.11), 'lack of nursing skill'(4.00), 'evaluation by faculty'(4.00) 'fear of making mistakes'(3.81) 'initial clinical experience on a unit'(3.76) 'initial application of nursing knowledge'(3.74) in turn. 3. The level of State-anxiety of senior students was higher than junior's (p=0.005)and the level of Trait-Anxiety of insufficient interpersonal relationship and unhealthy students were higher than others (p=0.015) There was no differences according to the student's grade in level of anxiety. 4. Both of self-stated anxiety and situationa anxiety of unhealthy students were high (p=0.007, p=0.000) and the level of self-stated anxiety of unsatisfied students for selection major and clinical experience were high (p=0.050, p=0.009). 5. Self-stated anxiety and situation anxiety (p=0.0000), self-stated- anxiety and Trait-anxiety(p=0.003), situation anxiety and Trait-anxiety(p=0.004), and Trait-anxiety and state-anxiety(p=0.000) of the students were interrelated. By the above conclusion, the nursing students still feel anxiety on clinical experience and on making a mistake due to the lack of their nursing knowledge and skill. And the students are afraid of the faculties' evaluation. In addition, the students who are not healthy and have not sufficiently interpersonal relationship feel more anxiety. But, since there was no difference significantly between each grade, we think it is needed that further study on the same topic in large samples. And, we have to equip the students with much nursing knowledge and philosophy apparently before the students have clinical experience. Finally, the faculty have to reduce the students' anxiety by making a climate of acceptance in clinical setting with good personality.

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Genetic evaluation of sheep for resistance to gastrointestinal nematodes and body size including genomic information

  • Torres, Tatiana Saraiva;Sena, Luciano Silva;dos Santos, Gleyson Vieira;Filho, Luiz Antonio Silva Figueiredo;Barbosa, Bruna Lima;Junior, Antonio de Sousa;Britto, Fabio Barros;Sarmento, Jose Lindenberg Rocha
    • Animal Bioscience
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    • 제34권4호
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    • pp.516-524
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    • 2021
  • Objective: The genetic evaluation of Santa Inês sheep was performed for resistance to gastrointestinal nematode infection (RGNI) and body size using different relationship matrices to assess the efficiency of including genomic information in the analyses. Methods: There were 1,637 animals in the pedigree and 500, 980, and 980 records of RGNI, thoracic depth (TD), and rump height (RH), respectively. The genomic data consisted of 42,748 SNPs and 388 samples genotyped with the OvineSNP50 BeadChip. The (co)variance components were estimated in single- and multi-trait analyses using the numerator relationship matrix (A) and the hybrid matrix H, which blends A with the genomic relationship matrix (G). The BLUP and single-step genomic BLUP methods were used. The accuracies of estimated breeding values and Spearman rank correlation were also used to assess the feasibility of incorporating genomic information in the analyses. Results: The heritability estimates ranged from 0.11±0.07, for TD (in single-trait analysis using the A matrix), to 0.38±0.08, for RH (using the H matrix in multi-trait analysis). The estimates of genetic correlation ranged from -0.65±0.31 to 0.59±0.19, using A, and from -0.42±0.30 to 0.57±0.16 using H. The gains in accuracy of estimated breeding values ranged from 2.22% to 75.00% with the inclusion of genomic information in the analyses. Conclusion: The inclusion of genomic information will benefit the direct selection for the traits in this study, especially RGNI and TD. More information is necessary to improve the understanding on the genetic relationship between resistance to nematode infection and body size in Santa Inês sheep. The genetic evaluation for the evaluated traits was more efficient when genomic information was included in the analyses.

Efficacy of Auxiliary Traits in Estimation of Breeding Value of Sires for Milk Production

  • Sahana, G.;Gurnani, M.
    • Asian-Australasian Journal of Animal Sciences
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    • 제12권4호
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    • pp.511-514
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    • 1999
  • Data pertaining to 1111 first lactation performance record of Karan Fries (Holstein-Friesian $\times$ Zebu) cows spread over a period of 21 years and sired by 72 bulls were used to examine the efficiency of sire indices for lactation milk production using auxiliary traits. First lactation length, first service period, first calving interval, first dry period and age at first calving were considered as auxiliary traits. The efficiency of this method was compared with simple daughter average index (D), contemporary comparison method (CC), least-square method (LSQ), simplified regressed least-squares method (SRLS) and best linear unbiased prediction (BLUP) for lactation milk production. The relative efficiency of sire evaluation methods using one auxiliary trait was lower (24.2-32.8%) in comparison to CC method, the most efficient method observed in this study. Use of two auxiliary traits at a time did not further improve the efficiency. The auxiliary sire indices discriminate better among bulls as the range of breeding values were higher in these methods in comparison to conventional sire evaluation methods. The rank correlation between breeding values estimated using auxiliary traits were high (0.77-0.78) with CC method. The rank correlation among auxiliary sire indices ranged from 0.98 to 0.99, indicating similar ranking of sire for breeding values of milk production in all the auxiliary sire indices.

모시 소재의 문양에 따른 감성 이미지 평가 (The Effect of Motives of Ramie Fabrics on Sensory Image Evaluation)

  • 이순임;김재숙
    • 복식문화연구
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    • 제14권6호
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    • pp.1015-1026
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    • 2006
  • The purpose of the study were to find out (1) the effect of motives on perceiver's image perception on ramie fabrics, and perceiver's trait, age and gender on sensory image evaluation of ramie fabrics. The research was a quasi experiment and experimental materials developed for the study were a set of material stimuli and semantic differential scales to measure sensory image of the stimuli, an aesthetic value scale. the independent design was motif design techniques(Plain Weave, burnt-out, embroidery, stripe, check). The subjects were 421 adults in Daejeon and Seachun. The results was as follows: The factor analysis of semantic differential scales for the ramie materials emerged 4 different image dimensions: attractiveness, hand, elegance, weight). The five design techniques showed significantly different image affects on some selective dimensions. The burn-out design gave the most attractive image, the embroidery design gave the softest image and plain weaved fabric presented the lightest hand image. Consumer's aesthetic values, gender and age tended to affect sensory image evaluation of ramie materials. On conclusion the result revealed that design strategy for the ramie material, design development though motives will be an essential process. and for material design pursued design image and target consumer's trait should be carefully considered.

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도시지역 노인들의 사회심리적 요인과 그의 관련요인 (Psychosocial Factors and Its Related Factors Among the Elderly People in a City)

  • 송영수;권인선;조영채
    • 한국산학기술학회논문지
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    • 제13권8호
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    • pp.3521-3531
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    • 2012
  • 본 연구는 도시지역 거주 노인들의 자기존중감, 상태불안, 대인의존형행동특성 및 통제신념 상호간의 관련성을 알아보고 이들 요인에 영향을 미치는 관련요인들을 파악하고자 실시하였다. 조사대상은 대전광역시에 거주하고 있는 65세 이상 노인 396명(남자 182명, 여자 214명)으로 하였으며, 조사는 2011년 4월 1일부터 6월 30일까지의 기간동안에 면접조사 하였다. 연구결과, 자기존중감은 상태불안, 대인의존형행동특성과 유의한 음의 상관관계를 보였고 통제신념과는 유의한 양의 상관관계를 보였다. 상태불안은 대인의존형행동특성과 유의한 양의 상관관계를 보였고, 통제신념과는 유의한 음의 상관관계를 보였다. 대인의존형행동특성은 통제신념과 유의한 음의 상관관계를 보였다. 단계별 다중회귀분석 결과 자기존중감에 영향을 미치는 요인으로는 IADL, 배우자 유무, 저작능 상태, 건망증이 선정되었으며, 상태불안에 영향을 미치는 요인으로는 치아의 부자유 유무, IADL, 배우자유무, 주관적인 건강상태, 신체의 부자유유무, 주관적인 수면의 질, 학력이 선정되었다. 대인의존형행동특성에 영향을 미치는 요인으로는 배우자유무, IADL, 월수입, 주관적인 건강상태가 선정되었으며, 통제신념에 영향을 미치는 요인으로는 배우자유무, 시력상태가 선정되었다. 이상과 같은 결과는 조사대상 노인들의 자기존중감, 상태불안, 대인의존형행동특성 및 통제신념은 인구사회학적 특성, 건강관련행위 특성 및 건강상태 등의 여러 변수들과 유의한 관계가 있음을 시사하고 있다.