• Title/Summary/Keyword: trait correlation

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Evaluation of QTL Related SSR Marker Universality in Korean Rice Breeding Populations

  • Song, Moon-Tae;Lee, Jeom-Ho;Lee, Sang-Bok;Ku, Ja-Hwan;Cho, Youn-Sang;Song, Myung-Hee;Park, Sung-Ho;Hwang, Hung-Goo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.48 no.1
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    • pp.56-64
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    • 2003
  • If a quantitative trait loci (QTL) marker identified in a population is applicable to different populations (marker universality), this will not only reduce the labor and cost in marker assisted selection (MAS), but accelerate the application of molecular markers to real breeding programs. Present study aims to evaluate the defined QTL related markers from a population to a different breeding population for the MAS. Four rice breeding populations were subjected to seventy-five simple sequence repeat (SSR) markers which were already identified for their polymorphism information content (PIC) in the parents of the crossings. Among them, eight markers were evaluated for their correlation between presence of marker alleles and phenotypic expression in breeding populations. A reasonable level of polymorphism for the mapped markers originated from any sources of rice accessions was observed between crosses of any sources (marker repeatability). However, correlation between presence of markers and expression of the traits in rice breeding populations was not significant except for minor portion of traits and markers examined (failure of marker universality). In the present study, various strategies were discussed to develop new markers with universality of breeding application.

A Preliminary Study for the Development of the Korean Version of the Daily Stress Inventory(DSI) (한국어판 매일 스트레스 평가서 개발을 위한 예비연구)

  • Joe, Sook-Haeng;Lee, Hyeon-Soo;Kwak, Dong-Il;Nam, Min
    • Korean Journal of Psychosomatic Medicine
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    • v.5 no.1
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    • pp.97-107
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    • 1997
  • As a preliminary step to develop the Daily stress Inventory(DSI) for assessing minor stressors frequently experienced in everyday lift. We examined the reliability and validity of the DSI. The Daily Stress Inventory(DSI), the Beck Depression Inventory(BDI), the State-Trait Anxiety Inventory(STAI), the Social Readjustment Rating Scale(SRRS) and the Minnesota Multiphasic Personality Inventory(MMPI) were administered to 111 college students. Compared with the weekly DSI Event, Impact and I/E ratio scores of the American college students, the weekly event and I/E ratio scores of the Korean college students were significantly higher but weekly Impact score was lower. The internal consistency reliability of the DSI as computed by Cronbach alpha was .98. The DSI I/E ratio scores were significantly correlated with the scores of State Anxiety$({\gamma}=.27)$ and Trait Anxiety${\gamma}=.24)$, but not with BDI scores. And the SSRS scores were not significantly correlated to the DSI Event or Impact and In ratio scores. Significant correlations were revealed between the DSI Impact scores and the Sc and Ma scales of the MMPI. And the correlation between the DSI I/E ratio scores and the L, D, Hy, Pd and Pa scales of the MMPI was also significant. But no significant correlation was found between the DSI Event scores and all the scales of the MMPI. This study suggests that the DSI can be a reliable and valid tool to assess the minor stress frequently experienced in everyday life future study should be directed to obtain normative data based on more varied and larger population. Especially gathering additional evidences for the validity of the DSI using other minor stressor scale will be required.

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Studies on Various Egg Traits of Korean Native Chicken (한국 재래계의 난 형질에 관한 연구)

  • 오희정
    • Korean Journal of Poultry Science
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    • v.23 no.1
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    • pp.19-26
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    • 1996
  • The present study was conducted to estimate average weights, and corrlation and regression coefficients among various traits of eggs obtained from Korean native and imported chicken. Data were obtained from 360 layers (180 of Korean native origin, and 180 of imported Decalb Brown) between November 8, 1994 to February 8, 1995. The results obtained are summerized as follows : 1. The mean weights of whole egg, yolk, dense white, thin white, and egg shell of native chicken were lighter (P<0.01) than those of Decalb Brown. 2. The coefficients of variability in each egg trait were lower in native chicken than in Decalb Brown, indicating the higher ability of native chicken to adapt to the local environment. 3. The phenotypic correlation coeffcients between whole egg and weights of yolk, dense white, thin white, and eggshell were 0.842∼0.992(P<0.01) in native chicken, and 0.865∼0.985(P<0.01) in Decalb Brown. 4. The average eggshell thicknesses of native and imported Decalb Brown were 362.5 $\mu\textrm{m}$ and 407.9 $\mu\textrm{m}$, respectively. 5. The regression coefficients of most of the traits of eggs from native chicken were lower than those from Decalb Brown layers, suggesting that Korean native chicken should be improved further in various egg traits measured in this study.

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Estimation of Genetic Parameter for Growth Traits of Olive Flounder Paralichthys olivaceus on the 8th Generation of Selective Breeding Using Multiple Traits Animal Model (다형질 Animal Model을 이용한 선발 8세대 육종 넙치(Paralichthys olivaceus)의 성장형질에 대한 유전모수 추정)

  • Park, Jong-Won;Lee, Dain;Jung, Hyo Sun;Kim, Julan;Yang, Hye-Rim;Kim, Hyun-Chul;Lee, Jeong-Ho
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.5
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    • pp.549-556
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    • 2022
  • The aim of this study was to evaluate the genetic parameters of growth traits for improvement breeding in olive flounder Paralichthys olivaceus at the 8th generation of selective breeding in April 2021. Growth traits such as total length, body weight and condition factor at 11 months of age were measured for 7,508 individuals with confirmed paternity. Data were analyzed using the restricted maximum likelihood method applied to a multiple traits animal model. The effects of sex and family were significantly different across traits (P<0.05). The heritability values of total length, body weight and condition factor were estimated to be high as 0.479, 0.457, and 0.466, respectively. Correlation analysis between phenotypic and breeding values, indicated that the selection accuracy was 75.9-85.2% for all traits. To increase the selection accuracy for parent fish selection, the sex and pedigree characteristics that affect each trait should be considered. Moreover, further improvement of multiple traits can be achieved if the correlation between each trait is appropriately considered.

A Retrospective Study of Traffic Accident Inpatients in a Korean Medicine Hospital: Correlation of STAI-I, STAI-II, BDI, and CSEI-s scores with Pain Improvement (한방병원에 입원한 교통사고 환자의 후향적 연구: 상태-특성 불안 척도, 벡 우울 척도, 핵심감정척도-단축형과 통증 호전도의 상관관계)

  • Lee, Seung Min;Lee, Cham Kyul;Lee, Eun Yong;Roh, Jeong Du
    • The Journal of Korean Medicine
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    • v.42 no.3
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    • pp.72-85
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    • 2021
  • Objectives: The objective of this study was to investigate the correlation of the scores on the State-Trait Anxiety Inventory-I (STAI-I), State-Trait Anxiety Inventory-II (STAI-II), Beck's Depression Inventory (BDI), and Core Seven Emotions Inventory-short form (CSEI-s) scales with pain improvement. Methods: We retrospectively investigated the medical records of 66 traffic accident inpatients who satisfy the selection criteria. They had received Korean medical treatment including acupuncture, electroacupuncture, pharmacopuncture, herbal medicine, and Chuna during hospitalization. STAI-II, BDI, and CSEI-s scores on hospital day 1, and STAI-I and numerical rating scale(NRS) scores on hospital day 1, 4, 7, and 10 were used for analysis. Pain improvement was evaluated by difference in NRS scores between hospital day 1 and hospital day 4, 7, 10. Results: The STAI-I, BDI, and CSEI-s scores showed significant correlations with pain or pain improvement. Conclusions: This study may be used in the research on psychological state and pain management of traffic accident patients and for patient education. Large-scale, well-designed studies need to be conducted in future to strengthen the results in this regard.

Effect of Korean Medical Treatment on Patients with Insomnia and Analysis of Correlation among Psychological Scale Changes: A Retrospective Chart Review (불면장애 환자의 한의치료 효과 및 심리척도 변화간 상관성 분석: 후향적 관찰 연구)

  • Sang-Il Seo;Geun-Woo Kim;Jong-Ho Yoo
    • Journal of Oriental Neuropsychiatry
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    • v.34 no.3
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    • pp.151-161
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    • 2023
  • Objectives: To examine effect of Korean medical treatment on patients with insomnia and correlations among changes in psychological scales before and after treatment. Methods: Medical records of 38 patients diagnosed with insomnia based on DSM-V who received Korean medical treatment (herbal-medication, acupuncture, Korean psychotherapy) for at least 8 weeks were retrospectively reviewed. Psychological scales including Insomnia Severity Scale (ISI), Beck Depression Inventory-II (BDI-II), State-Trait Anxiety Inventory (STAI), Beck Anxiety Inventory (BAI), and State-Trait Anger Expression Inventory (STAXI) were measured every four weeks and analyzed. Results: After eight weeks of treatment, ISI, BDI-II, BAI, STAI-X-1/2, and STAXI-S/T showed statistically significant decreases. Psychological scale pairs that showed a statistically significant correlation were ISI and BDI-IIㆍSTAI-X-1ㆍSTAI-X-2ㆍTA, BDI-II and BAIㆍSTAI-X-1ㆍSTAI-X-2ㆍAX-I, BAI and STAI-X-1ㆍSTAI-X-2ㆍSAㆍTA, STAI-X-1 and STAI-X-2, SA and TA, and TA and AX-I. In women, the improvement of AX-C was high. The improvement in AX-I score was significant when the disease duration was more than one year. A lower pretreatment BAI value predicted a greater decrease in ISI score after treatment. Conclusions: Korean medical treatment including herbal medicine, acupuncture, and Korean psychotherapy was effective in improving insomnia symptoms and accompanying symptoms such as depression, anxiety, and anger. In the future, more in-depth follow-up research is needed on the mechanisms by which various psychological problems (depression, anxiety, anger, etc) cause and worsen insomnia and the psychological symptoms secondary to insomnia.

An Analytic Study on Influencing Factors for Sexual Satisfaction in Climacteric Women (갱년기 여성의 성생활 만족에 영향을 미치는 요인)

  • Sung, Mi Hae
    • Korean Journal of Adult Nursing
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    • v.18 no.2
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    • pp.251-260
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    • 2006
  • Purpose: This study was undertaken in order to examine the factors related to sexual satisfaction in climacteric women. Method: This was a descripitive correlation study. The subjects were 544 women in climacteric stage. Data were analyzed a using of descriptive statistics, t-test, ANOVA, Pearson correlation coefficients and multiple regression with a SPSS WIN11.0. Results: The predictors of sexual satisfaction were age, education, marital status, family income, number of delivery, hormone therapy, body image, state anxiety, trait anxiety, spouse support. These factors explained 57.6% of the total variance. Conclusion: These finding suggest the need to develope nursing strategy to improve the sexual satisfaction in climacteric women. To improve the climacteric women's sexual satisfaction, the above major influencing factors should be considered.

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Approximation of Multiple Trait Effective Daughter Contribution by Dairy Proven Bulls for MACE (젖소 국제유전능력 평가를 위한 종모우별 다형질 Effective Daughter Contribution 추정)

  • Cho, Kwang-Hyun;Choi, Tae-Jeong;Cho, Chung-Il;Park, Kyung-Do;Do, Kyoung-Tag;Oh, Jae-Don;Lee, Hak-Kyo;Kong, Hong-Sik;Lee, Joon-Ho
    • Journal of Animal Science and Technology
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    • v.55 no.5
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    • pp.399-403
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    • 2013
  • This study was conducted to investigate the basic concept of multiple trait effective daughter contribution (MTEDC) for dairy cattle sires and calculate effective daughter contribution (EDC) by applying a five lactation multiple trait model using milk yield test records of daughters for the Multiple-trait Across Country Evaluation (MACE). Milk yield data and pedigree information of 301,551 cows that were the progeny of 2,046 Korean and imported dairy bulls were collected from the National Agricultural Cooperative Federation and used in this study. For MTEDC approximation, the reliability of the breeding value was separated based on parents average, own yield deviation and mate adjusted progeny contribution. EDC was then calculated by lactation using these reliabilities. The average number of recorded daughters per sire by lactations were 140.57, 94.24, 55.14, 29.20 and 14.06 from the first to fifth lactation, respectively. However, the average EDC per sire by lactation using the five lactation multiple trait model was 113.49, 89.28, 73.56, 54.02 and 35.08 from the first to fifth lactation, respectively, while the decrease of EDC in late lactations was comparably lower than the average number of recorded daughters per sire. These findings indicate that the availability of daughters without late lactation records is increased by genetic correlation using the multiple trait model. Owing to the relatedness between the EDC and reliability of the estimated breeding value for sire, understanding the MTEDC algorithm and continuous monitoring of EDC is required for correct MACE application of the five lactation multiple trait model.

Effect of Pre-Procedural State-Trait Anxiety on Pain Perception and Discomfort in Women Undergoing Colposcopy for Cervical Cytological Abnormalities

  • Baser, Eralp;Togrul, Cihan;Ozgu, Emre;Esercan, Alev;Caglar, Mete;Gungor, Tayfun
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.7
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    • pp.4053-4056
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    • 2013
  • Background: Colposcopy is the gold standard procedure for evaluating cervical cytological abnormalities. Although it is essentially a minimally invasive intervention, referral for colposcopy may cause significant distress on patients. In this study, we aimed to determine if pre-procedural anxiety levels have a significant association with procedure related pain and discomfort in women undergoing colposcopy for evaluation of abnormal cervical cytology. We also assessed the impact of various clinical factors on anxiety, pain and discomfort in these patients. Materials and Methods: This prospective study was performed at the gynecologic oncology department of Zekai Tahir Burak Women's Health Education and Research Hospital in Ankara, Turkey between January and June 2013. After taking informed consent, State-Trait Anxiety Inventory (STAI) form and a 14-item questionnaire were filled for women who were admitted to our outpatient colposcopy unit for evaluation of abnormal cervical cytology. STAI scores were calculated for each participant. Immediately after the procedure, visual analog scale (VAS) scores for procedure-related pain and discomfort were obtained. Associations between STAI and VAS scores were investigated using correlation analyses. The effect of various contributing factors on anxiety, pain and discomfort were evaluated with linear regression analysis. The p values less than 0.05 were considered statistically significant. Results: A total of 222 women met the inclusion criteria within the study period. Mean patient age was $38.5{\pm}9.6$. Median state and trait anxiety scores were 47 and 46, respectively. Median VAS scores for pain and discomfort were 4 for both variables. State anxiety had a significant correlation with procedure related discomfort (p=0.02). Colposcopy related pain VAS scores were significantly affected by state anxiety level, marital status and prior gynecological examination (p<0.05). Colposcopy related discomfort VAS scores were significantly affected by state anxiety level, marital status, prior gynecological examination and educational status. Conclusions: Additional measures should be implemented in women that carry higher risk for experiencing pain and discomfort. Social, cultural and lifestyle issues may also affect women's experiences during colposcopy, therefore further studies are needed to define specific determining factors in various populations.

The Relationship between the Spiritual Health, Anxiety and Pain in Hospitalized Cancer Patients (입원 암환자의 영적건강, 불안, 통증과의 관계)

  • Lee, Kyoung Eun;Lee, Young Eun
    • Journal of Hospice and Palliative Care
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    • v.18 no.1
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    • pp.25-34
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    • 2015
  • Purpose: This study is to find relationship between cancer patient's spiritual health and the level of their anxiety and pain. Methods: From April 27 through May 11, 2012, a survey was conducted with 167 cancer patients hospitalized at a university hospital in Busan. Spiritual health was measured by the Spiritual Health Inventory developed by Highfield (1992). The instrument for anxiety measurement was the State-Trait Anxiety Inventory by Spielberger (1975) and that for pain was the Visual Analogue Scale (2009). The association between patients' characteristics and spiritual health, anxiety or pain degree were analyzed using the ANOVA test. The interrelationship between spiritual health, anxiety and pain was analyzed using Pearson's correlation coefficients. Results: The patients exhibited a moderate degree of spiritual health and anxiety and a mild level of pain. Patients' spiritual health significantly differed by their religion, education, monthly income of the family, illness conditions, physical conditions, metastasis, daily living and support. Their anxiety level was significantly different according to age, religion, education, illness conditions, physical conditions, metastasis, daily living, family/friends' support and use of analgesics. Significant differences were also found in the level of pain according to illness conditions, physical conditions, metastasis, daily living, family/friends' support and use of analgesics. We found a moderately negative correlation between spiritual health and anxiety. Anxiety and pain showed a positive correlation, and spiritual health and pain exhibited a negative correlation. Conclusion: To help cancer patients to manage their spiritual health, anxiety and pain, a program should be developed considering the primary factors discussed in this study.