• 제목/요약/키워드: Heredity

검색결과 82건 처리시간 0.021초

DNA methylation-based age prediction from various tissues and body fluids

  • Jung, Sang-Eun;Shin, Kyoung-Jin;Lee, Hwan Young
    • BMB Reports
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    • 제50권11호
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    • pp.546-553
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    • 2017
  • Aging is a natural and gradual process in human life. It is influenced by heredity, environment, lifestyle, and disease. DNA methylation varies with age, and the ability to predict the age of donor using DNA from evidence materials at a crime scene is of considerable value in forensic investigations. Recently, many studies have reported age prediction models based on DNA methylation from various tissues and body fluids. Those models seem to be very promising because of their high prediction accuracies. In this review, the changes of age-associated DNA methylation and the age prediction models for various tissues and body fluids were examined, and then the applicability of the DNA methylation-based age prediction method to the forensic investigations was discussed. This will improve the understandings about DNA methylation markers and their potential to be used as biomarkers in the forensic field, as well as the clinical field.

해송(海松)의 근계밀도(根系密度)의 분포(分布)에 관(關)한 연구(硏究) (Distribution of root density in Pinus thunbergii Parlatore)

  • 주성현
    • Current Research on Agriculture and Life Sciences
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    • 제9권
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    • pp.109-114
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    • 1991
  • The depth and spread of root systems and the density of root branching affect the success and survival of plants subjected to drought. The type and size of root systems are controlled by heredity and soil conditions. There are also important interaction between roots and shoots; roots are dependent on shoots for carbohydrates, growth regulators, and certain vitamins, and shoots are dependent on roots for water, minerals, and certain growth regulators. Pinus thunbergii Parlatore had most of roots in the top 20cm of soil, and had little short of roots in the less than 80cm of soil. Average of root density was $270cm/cm^3$ in the upper soil(0~20cm). Root density of Pinus thunbergii Parlatore was similar to that of Cryptomeria japonica. There is no saying that Pinus thunbergii Parlatore has an advantage over Cryptomeria japonica in the drought. This data will be used to the root density values in the simulation model of black pine stands.

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광학적 방법을 이용한 비파괴적인 계란의 신선도 분석 방법 (Non-destructive analysis method of egg freshness by using optical method)

  • 조성복;황대석;이영우
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2007년도 춘계종합학술대회
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    • pp.449-451
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    • 2007
  • 텅스텐-할로겐(300 - 1050 nm) 광원을 사용한 광학적 방법으로 계란의 신선도를 측정하였다. 계란의 신선도는 저장온도, 습도, 이산화탄소 농도, 저장 기간 및 유전 형질에 따라 달라진다 광원을 조사하여 투과 및 반사 스펙트럼을 분석하여 계란의 신선도를 파악하였다.

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모(母)와 자녀간(子女間) 부정교합(不正咬合)의 유전성(遺傳性)에 관(關)한 연구(硏究) (A STUDY ON THE INHERITANCE OF MALOCCLUSION BETWEEN THE MOTHER AND OFFSPRING)

  • 손태원
    • 대한치과교정학회지
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    • 제14권1호
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    • pp.127-134
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    • 1984
  • The purpose of the present study was to investigate the correlations of malocclusion between the mother and the offspring and thus heritable features from mother to her offspring. Dental impression was taken of the both jaws of 73 mothers and their sons and 109 mothers and their daughters, and the measurement was obtained from the models. The correlation coefficient of the mesio-distal diameters of teeth and that of occlusion and arch variable was calculated from the mesurement. After the data was analyzed and estimated, the following results were obtained : 1. It was evident that the tooth size of the offspring was influenced from their mother. 2. It was evident that the occlusion, the arch size and shape of the offspring were influenced from their mother. 3. There was not the marked difference between the heredity of occlusion variable and arch variable on the mother-offspring relationship. 4. The correlation of the lower intercanine width and the lower available space discrepancy between the mother and the offspring were greatly influenced with the environmental factor.

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공간회로망법을 이용한 GIS내의 움직이는 도체이물질에 대한 전자계 해석 (Analysis of Electromagnetic Field by moving metal particle in GIS using SNM)

  • 임영환;박경수;최영환;최성열;고영호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 하계학술대회 논문집 C
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    • pp.1670-1672
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    • 2001
  • In compared with air insulated switchgear GIS has a high efficiency and confidence. Insulation method using $SF_6$ gas has a very excellent insulation characteristics for high voltage equipment but has a characteristics that insulation heredity is changed for internal unequal electric field. So analysis of electromagnetic field in GIS is very important basic data for structure design and trouble diagnosis process. In compared with established method, SNM in this paper observes variation of the electromagnetic field with real time and get result very similar to measurement. In order to know the variation of electromagnetic field distribution for transient response for time and position, variations are observed when metal particles are moving fast.

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GIS 내부의 도체이물질에 의한 불평등 전계 해석 (Analysis of unequal electric field by metal particle in GiS)

  • 박경수;김진;이희복;고영호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 추계학술대회 논문집 학회본부 C
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    • pp.531-533
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    • 2000
  • In compared with air insulated switchgear, GIS has a high efficiency and confidence So the transformer substation can be reduced the size to 1/10. Insulation method using $SF_6$ gas has a very excellent insulation characteristics for high pressure equipment but has a characteristics that insulation heredity is changed for internal unequal electric field. So analysis of electromagnetic field in GIS is very important basic data for structure design and trouble diagnosis process. In compared with established method, SNM in this paper observes variation of the electromagnetic field with real time and get result very similar to measurement. In order to know the variation of electromagnetic field distribution for transient response for time and position, variations are observed when the spacer is bonded and metal particles are moving fast.

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공간회로망법을 이용한 GIS 내부의 움직이는 도체이물질에 의한 불평등전계 해석 (Analysis of Unequal Electric Field by Moving Metal Particle in GIS Using SNM)

  • 박경수;최성열;고영호
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제51권2호
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    • pp.68-73
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    • 2002
  • In compared with air insulated switchgear, GIS has a high efficiency and confidence. Insulation method using $SF_6$ gas has a very excellent insulation characteristic for high voltage equipment but has a characteristic that insulation heredity is changed for internal unequal electric field. So analysis of time varying electromagnetic field in GIS is very important for structure design and trouble diagnosis process. In compared with established method, the SNM(Spatial Network Method) in this Paper can observe variation of electromagnetic field with real time and get result very similar to measurement. In order to Know variation of electromagnetic field distribution in fast moving particle, we make used of SNM.

행위유형과 책임문제 - 행위분석도를 통해 본 책임부여문제 - (Action Types and Responsibility)

  • 손경상
    • 철학연구
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    • 제116권
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    • pp.181-206
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    • 2010
  • 우리는 흔히 인간은 자신의 행위를 선택하고 통제할 수 있는 자유의지를 지닌 존재이기 때문에 행위에 대해 그 책임을 물을 수 있다고 말한다. 인간의 행위는 자연현상처럼 단순한 움직임으로 파악될 수 없다. 행위에는 마음이 작용하여 매우 복잡한 내면의 과정을 거쳐 나타나기 때문이다. 인간의 행위는 인간의 내부와 외부로부터 다양한 영향을 받는다. 행위에 영향을 주는 다양한 내적 외적 요인들은 '자신의 자유의지로 선택하고 통제할 수 있는 영역', '통제가능한 영역으로 변환 될 수 있는 영역', '부분적으로 결정된 영역', 그리고 '선택이나 통제가 불가능한 완전히 결정된 영역'으로 나뉘어진다. 인간의 행위에 영향을 주는 내적 외적 요인들에는 자신의 자유의지로 선택되고 통제가능한 요인들이 있는 반면, 자신이 선택하거나 통제 할 수 없는 상당히 많은 요인들도 있다는 것에 우리는 주목해야 한다. 인간에게 자유의지가 있다는 사회통념에 의해, 자신이 선택하거나 통제할 수 없는 요인들로부터 영향을 받아 발생된 인간의 행위에 대한 책임까지도 행위자에게 지우게 하는 것은 매우 불합리하다. 스스로 선택할 수없는 유전요인이나 환경요인으로 인한 책임문제가 이에 해당한다. 이런 문제를 해결하기위해서는 정치력과 교육력이 요청된다. 좋지 못한 외적인 환경요인들로 인해 발생한 책임은 정치에 있다. 인간의 내면에 올바른 가치관을 형성시킴으로 좋지 않은 내적 유전요인을 극복할 수 있는 힘은 교육에 있다. 이런 점에서 정치와 교육은 인간행위에 대한 책임문제에서 자유로울 수 없다.

아건강 설문지와 기분상태척도의 상관성 연구 (Correlation Analysis of Korean Version of the Subhealth Questionnaire And Profile of Mood States Factors)

  • 유재민;박영재;박영배
    • 대한한의진단학회지
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    • 제15권1호
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    • pp.77-86
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    • 2011
  • Objectives: With increased rate of chronic disease, concerns about preventive medicine has raised. Therefore questionnaire of subhealth status was developed and analysed in our previous study. A large number of chronic diseases is related to emotional issues. This study was to confirm a relationship between mood state and health status in terms of modern people's healthcare. Methods: Subhealth Questionnaire and Korean version of Profile of Mood States(k-POMS) were putted by 113 college students. And correlation and regression analysis was conducted. Results: Subhealth questionnaire and k-POMS proved a significant correlation. In particular, subhealth factor 3(mood) had a significant correlation with all factors of k-POMS. Subhealth factor 1(body), subhealth factor 2(life) and subhealth factor 6(society) had significant correlations with 5 factors of k-POMS. Subhealth factor 4(energy) and subhealth factor 5(heredity) did not show significant results. 'Fatigue' factor of k-POMS was proved to be the most important factor influencing the subhealth status and illness, indicating high correlations with all of subhealth status.

국내외 홍채학 연구동향 (A Review of Iridology)

  • 임영우;박성일;박영재;박영배
    • 대한한의진단학회지
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    • 제17권1호
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    • pp.1-16
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    • 2013
  • Objectives Iridology is a field of study that diagnoses various systemic diseases through analysis of colors, structural characteristics and changes in iris. The purpose of this study was to review previously published study results of the iridology. Methods The studies were searched with the keyword "iridology" through search engines such as SCOPUS, Pub med, RISS, and NDSL. Total of 36 iridology-related studies published from 1980 to 2012 were analyzed. Results Most diagnoses of systemic disease through iris markings were insignificant. The studies on relevance of gene polymorphism and iris constitution were highly significant. The studies on relevance of Sasang constitution and iris constitution varied in results depending on diagnosis methods. The studies on relevance of iris constitution and diseases had significant results. The structural characteristics of iris were related to certain personality. Conclusions The studies on utility of iris diagnosis and diagnostic markings were negative, but the relevance of constitution, heredity, and iris diagnosis was positive. A persistent in-depth study on relevance of iris and constitution is needed in the future.