• 제목/요약/키워드: IT Relatedness

검색결과 120건 처리시간 0.028초

Genetic diversity and population structure of indigenous chicken of Bangladesh using microsatellite markers

  • Rashid, Muhammad Abdur;Manjula, Prabuddha;Faruque, Shakila;Bhuiyan, A.K. Fazlul Haque;Seo, Dongwon;Alam, Jahangir;Lee, Jun Heon;Bhuiyan, Mohammad Shamsul Alam
    • Asian-Australasian Journal of Animal Sciences
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    • 제33권11호
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    • pp.1732-1740
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    • 2020
  • Objective: The objectives of this study were to investigate the genetic diversity, population structure and relatedness among the five chicken populations of Bangladesh using microsatellite markers. Methods: A total of 161 individuals representing 5 chicken populations (non-descript Deshi [ND], naked neck [NN], hilly [HI], Aseel [AS], and red jungle fowl [JF]) were included in this study to investigate genetic diversity measures, population structure, genetic distance and phylogenetic relationships. Genotyping was performed using 16 selected polymorphic microsatellite markers distributed across 10 chromosomes. Results: The average observed and expected heterozygosity, mean number of alleles and polymorphic information content were found to be 0.67±0.01, 0.70±0.01, 10.7 and 0.748, respectively in the studied populations. The estimated overall fixation index across the loci (F), heterozygote deficiency within (FIS) and among (FIT) chicken populations were 0.04±0.02, 0.05 and 0.16, respectively. Analysis of molecular variance analysis revealed 88.07% of the total genetic diversity was accounted for within population variation and the rest 11.93% was incurred with population differentiation (FST). The highest pairwise genetic distance (0.154) was found between ND and AS while the lowest distance was between JF and AS (0.084). Structure analysis depicted that the studied samples can be categorized into four distinct types or varieties (ΔK = 3.74) such as ND, NN, and HI where AS and JF clustered together as an admixed population. The Neighbor-Joining phylogenetic tree and discriminant analysis of principal component also showed close relatedness among three chicken varieties namely AS, HI, and JF. Conclusion: The results reflected that indigenous chicken of Bangladesh still possess rich genetic diversity but weak differentiation among the studied populations. This finding provides some important insight on genetic diversity measures that could support the designing and implementing of future breeding plans for indigenous chickens of Bangladesh.

Utilization of DNA Marker-Assisted Selection in Korean Native Animals

  • Yeo, Jong-sou;Kim, Jae-Woo;Chang, Tea-Kyung;Pake, Young-Ae;Nam, Doo-Hyun
    • Biotechnology and Bioprocess Engineering:BBE
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    • 제5권2호
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    • pp.71-78
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    • 2000
  • The recent progress od DNA technologies including DNA fingerprinting (DFP) and random amplified DNA polymorphism (RAPD) analysis make it possible to identify the specific genetic trits of animals and to analyze the genetic diversity and relatedness between or withinspecies or populations. Using those techniquse, some efforts to identify and develop the specific DNA markers based on DNA polymorphism, which are related with economic traits for Korean native animals, Hanwoo(Korean native cattle),Korean native pig and Korean native chicken, have been made in Korea for recent a few years. The developed specific DNA markers successfully characterize the Korean native animals as the unique Korean genetic sources, distinctively from other imported breeds. Some of these DNA markers have been related to some important economic traits for domestic animals, for example, growth rate and marbling for Honwoo, growth rate and back fat thinkness fornative pig, and growth rate, agg weight and agg productivity for native chicken. This means that those markers can be used in important marker-assised selection (MAS) of Korean native domestic animals and further contribute to genetically improve and breed them.

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고령자의 손등피부 탄성 특성을 활용한 체질분류 방법 연구 (Study of Sasang Constitution Classification Method Based on Elasticity Coefficient of Hand Doral Skin of Elderly People)

  • 강남식;이재철;구본초;김종열;김영민
    • 동의생리병리학회지
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    • 제25권6호
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    • pp.1050-1055
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    • 2011
  • This paper presents a novel diagnostic method to determine Sasang Consitution (SC) by elasticity coefficient of hand dorsal skin of elderly people. For this purpose, we carried out a clinical test, in which Our SC diagnostic tool and one Oriental medical doctor with SC medicine expertise participated to categorize 458 healthy subjects into four constitutions. After excluding heavy-noise, we extracted 295 subjects' elasticity coefficient feature data and statistically analyzed their SC relevance with ANOVA test. It resulted in that, Taeum-in has high elasticity coefficient compared to Soeum-in in a significance level of 0.05. There are no differences of elasticity coefficient in genders. This result is supported by the theory of Longevity and Life Preservation in Eastern Medicine(Donguisusebowon, 동의수세보원) which suggested that Taeum-in's flesh is solid and Soeum-in's one is tender. This is the first work which reports the relatedness of skin elasticity coefficient and SC by an objective clinical test.

A Semantic Representation Based-on Term Co-occurrence Network and Graph Kernel

  • Noh, Tae-Gil;Park, Seong-Bae;Lee, Sang-Jo
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제11권4호
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    • pp.238-246
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    • 2011
  • This paper proposes a new semantic representation and its associated similarity measure. The representation expresses textual context observed in a context of a certain term as a network where nodes are terms and edges are the number of cooccurrences between connected terms. To compare terms represented in networks, a graph kernel is adopted as a similarity measure. The proposed representation has two notable merits compared with previous semantic representations. First, it can process polysemous words in a better way than a vector representation. A network of a polysemous term is regarded as a combination of sub-networks that represent senses and the appropriate sub-network is identified by context before compared by the kernel. Second, the representation permits not only words but also senses or contexts to be represented directly from corresponding set of terms. The validity of the representation and its similarity measure is evaluated with two tasks: synonym test and unsupervised word sense disambiguation. The method performed well and could compete with the state-of-the-art unsupervised methods.

의존 인스턴스 변수를 고려한 클래스 응집도 척도의 개선 (Improving Cohesion Metrics for Classes By Considering Dependent Instance Variables)

  • 채흥석;권용래;배두환
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제31권9호
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    • pp.1131-1141
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    • 2004
  • 응집도는 모듈의 구성 요소들 사이의 관련성 정도를 나타내는 척도로서, 응집도가 높을수록 소프트웨어에 대한 이해 및 유지보수가 용이하다고 알려져 있다. 최근에 응집도의 개념을 객체지향 시스템의 클래스에 적용하기 위하여 많은 응집도 척도들이 제안되고 있다. 그러나, 기존의 응집도 척도들은 다른 인스턴스 변수의 값에 의존하는 의존 인스턴스 변수의 특성을 고려하지 않았기 때문에 클래스의 응집도를 정확하게 측정하지 못하였다. 본 논문에서는 응집도 평가 시 의존 인스턴스 변수에 대한 고려를 통하여 기존의 응집도 척도를 개선시킬 수 있음을 소개한다. 그리고, 의존 인스턴스의 특성을 기존의 응집도 척도에 반영한 실험을 통하여 의존 인스턴스 변수에 대한 고려의 중요성을 소개한다.

권리사용료의 지급과 관세평가에 관한 연구 (A Study on Payments of Royalty & License Fee and Customs Valuation)

  • 이병락;임성수
    • 무역상무연구
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    • 제69권
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    • pp.673-698
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    • 2016
  • This study tries to conduct a systematic analysis on whether adding up the royalties and license fees or not in measuring the taxable amount of tariff. We have confirmed that three main criteria to decide whether it is yes or not are non-inclusion, relatedness and condition of sale. We also have realized that whether satisfying a condition of sale or not depends on license agreement, sales contract, special relationship and so on. Furthermore, we have made case studies of bonded factory, film's domestic distribution, exempt royalty and license fee, price for exclusive use of relevant technology, retroactive application of price change and strict interpretation. Based on the case studies we have derived the following conclusions: First, the royalties and license fees only actually paid to the licensors may be added to taxable amount. Second, the royalties and license fees incurred after the imported goods are made into domestic goods may not be added up. Third, the royalties and license fees paid as a price for use may not be added up. Fourth, the analogical interpretation of relevant codes is not accepted.

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젖소 유방염 유래 Staphylococcus aureus의 Coagulase Gene 유전형 분석에 의한 감염경로 규명 (Epidemiological Investigation of Staphylococcus aureus Isolated from Bovine Mastitis Based on the Polymorphism of Coagulase Gene)

  • 문진산;이애리;임숙경;주이석;강현미;김종만;김말남
    • 대한수의학회지
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    • 제43권1호
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    • pp.95-102
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    • 2003
  • Because Staphylococcus aureus (S. aureus) has variable number of short sequence repeat region in coagulase gene, it has been used to investigate the relatedness of S. aureus isolates. In this study, we isolated S. aureus strains from 20 dairy farms with bovine mastitis from September 2000 to August 2001. PCR-RFLP analysis of coagulase gene revealed 10 different patterns. Most of the S. aureus isolates showed only one coagulase gene RFLP pattern per farm. However, there were several S. aureus clones spreading between dairy farms. All the farms showed poor management conditions of milking machine and milker, indicating that managements for mastitis control program include use of proper milking matching, premilking sanitation, and segregation in the S. aureus infection herd. Our data suggest that PCR-RFLP analysis of coagulase gene might be applicable for the epidemiological investigations of S. aureus isolated from bovine mastitis cows.

유행성 출혈형 폐염양 질환의 병원체에 관한 연구 (Comparative Analysis of Leptospira Isolated in Korea and Leptospira from ATCC)

  • 김주덕;이태윤;이원영;이봉기
    • 대한미생물학회지
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    • 제21권2호
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    • pp.191-204
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    • 1986
  • Leptospira isolated from the patients with so called epidemic pulmonary hemorrhagic fever were comparatively studied with standard strains obtained from ATCC. The specific aim of this study was to clarify the morphologic heterogeneity of the isolates, i. e., coexistence of spiral forms in both handness, right and left, rod and spherical forms in their population by comparing them with those of the ATCC strains. No differences between our strains and ATCC strains were noticed in their growth characteristics, responses to the culture media, temperature, antibiotics and antifungal agents. Furthermore, the morphologic heterogeneity had been repeatedly observed even in cultures of standard ATCC strains, which had been noticed in the cultures of bacteria isolated in this laboratory. The serologic analysis of our isolates demonstrated that the bacteria reacted with L. icterohaemorrhagiae and L. australis regardless their differences in time of isolation(1984, 1985). Thus, it was concluded that the spiral bacteria isolated in this laboratory are Leptospira of a new serovar which still remained to be determined. And the previous reports on the morphology of the Leptospira, which described that the Leprospira population has only spiral forms with right. handed coils might be reconsidered.

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클래스 멤버 사이의 쓰기 연산을 고려한 새로운 TCC 및 LCOM 척도 (New TCC and LCOM Measures Considering the Write Operations between Class Members)

  • 우균;채흥석
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제32권11호
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    • pp.1036-1046
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    • 2005
  • 응집도는 모듈의 구성 요소들 사이의 관련성 정도를 나타내는 척도로서, 응집도가 높을수록 소프트웨어에 대한 이해 및 유지보수가 용이하다고 알려져 있다. 최근에 응집도의 개념을 객체지향 시스템의 클래스에 적용하기 위하여 많은 응집도 척도들이 제안되고 있다. 본 논문에서는 클래스 멤버 간의 쓰기 의존성의 영향을 고려함으로써 기존의 응집도 척도를 개선시킬 수 있음을 소개한다. 본 논문의 기법을 지원하는 도구를 개발하였으며 이 도구를 이용하여 C++ 클래스 라이브러리에 이 기법을 적용한 사례 결과를 소개한다.

문제중심학습에서 내재적 동기와 학습 성과의 관계 (The relationship between intrinsic motivation and learning outcomes in problem-based learning)

  • 김혜령
    • 한국간호교육학회지
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    • 제26권3호
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    • pp.238-247
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    • 2020
  • Purpose: The purpose of this study was to identify the relationship between intrinsic motivation and learning outcomes of nursing college students who took the Fundamentals of nursing as a problem-based learning method. Methods: In this cross-sectional study, we identified the intrinsic motivations of 114 nursing students who completed problem-based learning using the Intrinsic Motivation Inventory. The t-test was conducted to identify differences according to intrinsic motivation, and correlation analysis was performed to confirm the relationship between intrinsic motivation and learning outcomes. Results: The group with higher intrinsic motivation showed higher scores in all domains of self-assessed learning outcomes than the lower group. It was the 'Relatedness with an instructor' that showed the highest correlation with the learning outcomes in the domains of intrinsic motivation. Conclusion: Problem-based learning is an effective learning method for cultivating the competencies needed for nurses. The intrinsic motivation of students is an important factor in the performance of problem-based learning. For the efficiency of problem-based learning, efforts should be made to develop and apply autonomy-supportive interventions that can enhance intrinsic motivation.