• Title/Summary/Keyword: Coefficient of Variance

Search Result 1,100, Processing Time 0.031 seconds

Phylogenetic analysis and association of markers and traits related to starch contents in Korean potato cultivars using SSRs

  • Yi, Jung Yoon;Seo, Hyo Won;Huh, On Sook;Park, Young Eun;Cho, Ji Hong;Cho, Hyun Mook
    • Korean Journal of Breeding Science
    • /
    • v.42 no.1
    • /
    • pp.28-34
    • /
    • 2010
  • Diversity of 30 Korean potato cultivars was evaluated using 14 microsatellite markers. Twelve microsatellite markers representing 12 loci in the potato genome detected 84 polymorphisms among 30 cultivars and revealed alleles with a mean of 7.00 alleles per primer. The polymorphism information content (PIC) value ranged from 0.57 to 0.93 with average of 0.82. Based on polymorphism, cluster analysis was conducted by the unweighted pair-group method with arithmetic average (UPGMA) methods. Thirty potato varieties were distinctly separated into 2 groups and similarity coefficient of cluster ranged from 0.58 to 0.95. Thirty tetraploid cultivars were evaluated for six important agronomic traits. One-way analysis of variance was done to look for the degree of relationships between individual markers and traits. K1 and K2 markers showed a significant association with amylose contents, starch contents, and specific gravity.

A Study on Empowerment and Job Satisfaction of Caregivers Aged (요양보호사의 임파워먼트와 직무만족도)

  • Byeon, Mi-Kyeong
    • Journal of Korean Academy of Rural Health Nursing
    • /
    • v.8 no.2
    • /
    • pp.75-85
    • /
    • 2013
  • Purpose: The descriptive study was done to examine empowerment and job satisfaction of caregivers caring for elders in long term care facilities. Methods: Data were gathered during September 2009, through a survey methodology. The participants were 189 caregivers who worked in long-term care institutions and home care clinics located in city and rural areas. The collected data were analyzed using t-test, ANOVA, Pearson correlation coefficient and stepwise multiple regression analysis. Results: For the relationship between empowerment and job satisfaction, there was a significant positive correlation between empowerment and job satisfaction (r=.503, p<.01). Empowerment explained 52.5% of the variance in job satisfaction. Conclusion: The results indicate that the level of empowerment influences job satisfaction. Therefore human resources management planning should focus on increasing empowerment in these caregivers in order to raise their job satisfaction.

The Study on the Variation of Pass-by-Noise level due to ISO Road (ISO 노면의 Pass-by-Noise Level 편차에 관한 연구)

  • 김기전;배철용;노국희
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2003.11a
    • /
    • pp.371-376
    • /
    • 2003
  • The objective of this paper is to compare the site-to-site variability of ISO 10844 pass-by-noise test sites. In order to investigate the site-to-site variance of test surfaces, European commercial tires are tested at seven different test sites. Three Korea test sites and four Europe test sites are selected.. The pass by noise test is executed according to a 2001/43/EC regulation. A]though the ISO surface has a very specific track composition, it does not reduce the variation of pass-by-noise measurements over the surface of test sites. This paper shows that the test results of pass-by-noise level are different depending on the test sites. The correlation obtained in this work is able to predict the pass by noise level for certain test site using the data measured from another test site. 17he prediction value is range with an error within 1dB(A).

  • PDF

Development of a Self-Management Adherence Instrument for Patients with Hypertension (고혈압 환자의 자가 관리 이행 도구개발)

  • Gwak, Mi-gyeong
    • Journal of Home Health Care Nursing
    • /
    • v.30 no.1
    • /
    • pp.37-47
    • /
    • 2023
  • Purpose: This study aimed to develop an instrument that measured adherence to self-management among patients with hypertension, and to verify the validity and reliability of the developed instrument. Methods: The 34 indicators that underwent the content validity test were provided to 202 subjects for investigation The collected data were analyzed using SPSS Ver. 22.0 and Amos Ver. 25.0. Results: Five factors, 'interaction,' 'lifestyle change,' 'continuing motivation,' 'medical care', and 'weight control' were extracted, and the total cumulative variance was shown to be 61.75%. The test statistic of the regression coefficient was statistically significant according to the confirmatory factor analysis. Conclusion: It is suggested that more research is needed to generalize the instrument to suit more candidates, while continuing to refine the reliability and validity of the instrument.

Impact of Uncertainty on Resilience in Cancer Patients (암환자의 질병에 대한 불확실성이 극복력에 미치는 영향에 관한 연구)

  • Cha, Kyung-Suk;Kim, Kyung-Hee
    • Asian Oncology Nursing
    • /
    • v.12 no.2
    • /
    • pp.139-146
    • /
    • 2012
  • Purpose: This study was designed to identify the impact of uncertainty degree and uncertainty appraisal on cancer patients resilience. Methods: A sample of 181 patients with cancer was recruited from a hospital in Incheon. Data were collected from May 20 to August 25, 2011. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and multiple regression with the SPSS/WIN 12.0 program. Results: The resilience for cancer patients showed a significant relationship with uncertainty degree and uncertainty appraisal. The significant factors influencing resilience were uncertainty degree and uncertainty appraisal, they explained 26.5% of the variance. Conclusion: Patients with cancer were adversely affected by uncertaint which led to a negative effect on resilience. The result suggests that intervention programs to reduce the level of uncertainty among patients could improve the resilience of cancer patients.

Anthropometric Study on Facial Shape Analysis of Female College Students (여대생의 얼굴형태 분석을 위한 계측적 연구)

  • 김혜수;이경화
    • Journal of the Korean Home Economics Association
    • /
    • v.42 no.7
    • /
    • pp.165-178
    • /
    • 2004
  • The purpose of this study is to research the facial shape and suggest quantified data for the domestic fashion cordinaton and beauty industry. A measurement survey of 264 female college students aged from 20 to 24, was conducted with photographs of front view and later view taken by digital camera. Two hundred values were generated through the facial measurement program. In the results, for the coefficient of variance of the height was highly related with height, radial length was highly related with radial length, and breadth with highly related with breadth. However Gnation breadth, Zygomatic breadth, Philtrum breadth were lowly related and indefendent with other items.

Risk Evaluation and Uncertainty Analysis in Hydraulic Design system (수공구조물 설계 시스템의 위험도 평가와 불확실성 해석)

  • Chang, Suk-Hwan
    • Journal of the Korea institute for structural maintenance and inspection
    • /
    • v.2 no.4
    • /
    • pp.194-200
    • /
    • 1998
  • Risk, probability of failure, which includes various uncertainties and influential factors of performance should be accounted for in engineering system. Recently, several different methods to analysis risk evaluation evolved and one of the practical method is FOSM (First Order Second Moment Method ). FOSM method is derived in terms of terms coefficient of variance to uncertainties which influence various factor. For risk evaluation and uncertainty analysis in hydraulic design system, load-capacity relationship is adopted in this paper. Sample catchment with design of sewer system is applied, which plots safety factor vs. risk. Risk evaluation and uncertainty analysis are very to important develop optimal design model in hydraulic system

  • PDF

Relationship between Artificial Intelligence Ethical Awareness, Bioethics Awareness, and Person-Centered Care of General Hospital Nurses (종합병원 간호사의 인공지능윤리의식, 생명윤리의식 및 인간중심돌봄간의 관계)

  • Cho, Ok-Hee;Yoon, Jeong Eun
    • Journal of Home Health Care Nursing
    • /
    • v.29 no.3
    • /
    • pp.319-328
    • /
    • 2022
  • Purpose: This study investigated the relationship between artificial intelligence ethical awareness, bioethics awareness, and person-centered care of general hospital nurses. Methods: The participants were 192 nurses. Data were analyzed using descriptive statistics, t-test, analysis of variance, and Pearson's correlation coefficient with the SPSS program. Results: The average points for artificial intelligence ethical awareness, bioethics awareness, and person-centered care were 2.93, 2.77, and 3.50, respectively. Artificial intelligence ethical awareness and bioethics awareness had statistically significant negative relationships. Artificial intelligence ethical awareness, bioethics awareness, and person-centered care were not significantly correlated. Conclusion: Education, training, and organizational support are needed to improve artificial intelligence ethics awareness, bioethics awareness, and person-centered care for general hospital nurses.

ON GENERALIZED EXTENDED BETA AND HYPERGEOMETRIC FUNCTIONS

  • Shoukat Ali;Naresh Kumar Regar;Subrat Parida
    • Honam Mathematical Journal
    • /
    • v.46 no.2
    • /
    • pp.313-334
    • /
    • 2024
  • In the current study, our aim is to define new generalized extended beta and hypergeometric types of functions. Next, we methodically determine several integral representations, Mellin transforms, summation formulas, and recurrence relations. Moreover, we provide log-convexity, Turán type inequality for the generalized extended beta function and differentiation formulas, transformation formulas, differential and difference relations for the generalized extended hypergeometric type functions. Also, we additionally suggest a generating function. Further, we provide the generalized extended beta distribution by making use of the generalized extended beta function as an application to statistics and obtaining variance, coefficient of variation, moment generating function, characteristic function, cumulative distribution function, and cumulative distribution function's complement.

Multivariate control charts for monitoring correlation coefficients in dispersion matrix

  • Chang, Duk-Joon;Heo, Sun-Yeong
    • Journal of the Korean Data and Information Science Society
    • /
    • v.23 no.5
    • /
    • pp.1037-1044
    • /
    • 2012
  • Multivariate control charts for effectively monitoring every component in the dispersion matrix of multivariate normal process are considered. Through the numerical results, we noticed that the multivariate control charts based on sample statistic $V_i$ by Hotelling or $W_i$ by Alt do not work effectively when the correlation coefficient components in dispersion matrix are increased. We propose a combined procedure monitoring every component of dispersion matrix, which operates simultaneously both control charts, a chart controlling variance components and a chart controlling correlation coefficients. Our numerical results show that the proposed combined procedure is efficient for detecting changes in both variances and correlation coefficients of dispersion matrix.