• 제목/요약/키워드: Improvement of statistics quality

검색결과 294건 처리시간 0.026초

A whole genome association study to detect additive and dominant single nucleotide polymorphisms for growth and carcass traits in Korean native cattle, Hanwoo

  • Li, Yi;Gao, Yuxuan;Kim, You-Sam;Iqbal, Asif;Kim, Jong-Joo
    • Asian-Australasian Journal of Animal Sciences
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    • 제30권1호
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    • pp.8-19
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    • 2017
  • Objective: A whole genome association study was conducted to identify single nucleotide polymorphisms (SNPs) with additive and dominant effects for growth and carcass traits in Korean native cattle, Hanwoo. Methods: The data set comprised 61 sires and their 486 Hanwoo steers that were born between spring of 2005 and fall of 2007. The steers were genotyped with the 35,968 SNPs that were embedded in the Illumina bovine SNP 50K beadchip and six growth and carcass quality traits were measured for the steers. A series of lack-of-fit tests between the models was applied to classify gene expression pattern as additive or dominant. Results: A total of 18 (0), 15 (3), 12 (8), 15 (18), 11 (7), and 21 (1) SNPs were detected at the 5% chromosome (genome) - wise level for weaning weight (WWT), yearling weight (YWT), carcass weight (CWT), backfat thickness (BFT), longissimus dorsi muscle area (LMA) and marbling score, respectively. Among the significant 129 SNPs, 56 SNPs had additive effects, 20 SNPs dominance effects, and 53 SNPs both additive and dominance effects, suggesting that dominance inheritance mode be considered in genetic improvement for growth and carcass quality in Hanwoo. The significant SNPs were located at 33 quantitative trait locus (QTL) regions on 18 Bos Taurus chromosomes (i.e. BTA 3, 4, 5, 6, 7, 9, 11, 12, 13, 14, 16, 17, 18, 20, 23, 26, 28, and 29) were detected. There is strong evidence that BTA14 is the key chromosome affecting CWT. Also, BTA20 is the key chromosome for almost all traits measured (WWT, YWT, LMA). Conclusion: The application of various additive and dominance SNP models enabled better characterization of SNP inheritance mode for growth and carcass quality traits in Hanwoo, and many of the detected SNPs or QTL had dominance effects, suggesting that dominance be considered for the whole-genome SNPs data and implementation of successive molecular breeding schemes in Hanwoo.

외국인 의료서비스 향상을 위한 주요 요소: 델파이 연구 (Key Elements for the Improvement of Healthcare Services for Foreigners in Korea: A Delphi Study)

  • 이현희;이병숙
    • 간호행정학회지
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    • 제18권2호
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    • pp.137-145
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    • 2012
  • Purpose: This study was performed to identify the key elements for the improvement of healthcare services for foreigners in Korea. Method: Delphi technique was used for this study. As the members of an expert panel for this study, 32 healthcare professionals, who were physicians, nurses, administrators, and care coordinators, with at least 6 months of experiences in international clinics and healthcare services in five metropolitan areas in Korea participated. Data collections were conducted three times from August to October, 2009. The priority and the importance were analyzed using descriptive statistics in SPSS Win 15.0. Result: The key element selected most frequently by the experts was the 'Healthcare providers' abilities for foreign languages' followed by 'Guidelines for facing medical accidences and disputes', 'Information and guide for healthcare services written in English', 'Informed consent preventing medical disputes', 'System of healthcare service fees for foreigners'. Conclusions: The key elements for the improvement of healthcare services for foreigners in Korea were mostly the requirements for effective communication with the foreign clients and the systemic support. The key elements identified in this study can be applied usefully for the development of strategies to improve the quality of healthcare services for foreigners.

한국의 농촌 생활개선사업이 농촌여성의 삶의 질에 미치는 영향요인 (Factors Influencing Effects of Korea's Rural Life Improvement Program on Quality of Life of Rural Women)

  • 가모 베렛켓 로바;최윤지;최정신;손주리
    • 농촌지도와개발
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    • 제30권4호
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    • pp.243-257
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    • 2023
  • 농촌생활개선사업은 농촌생활의 질을 높이고 농촌복지와 문화생활을 증진시키는 것을 중심 목표로 시행되어 왔으나 농촌생활개선사업이 농촌공동체나 가구에 미치는 효과에는 다양한 요인들이 영향을 미칠 수 있다. 본 연구는 한국의 농촌여성들에게 농촌생활개선사업이 미치는 지각된 효과의 결정요인을 알아보고자 하였다. 본 연구의 자료를 생성하기 위하여 혼합연구설계를 사용하였으며, 농촌생활개선사업에 참여한 농촌여성 311명의 설문자료를 수집하고 초점집단토론을 실시하였다. 농촌생활개선사업이 농촌여성에게 미치는 효과를 예측하는 변수를 파악하기 위하여 기술통계와 위계적 회귀분석을 이용하여 정량적 자료를 분석하였다.분석결과, 응답자의 연령, 지역사회 거주형태, 리더십 경력, 교육수준, 지역사회 만족도와 지역사회 참여가 농촌생활개선사업에 대한 인지된 효과에 영향이 있는 것으로 나타났다.

4차 산업혁명시대의 품질경영 (Quality Management on the 4th Industrial Revolution)

  • 정혜란;홍성훈;이민구;권혁무
    • 품질경영학회지
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    • 제45권4호
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    • pp.629-648
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    • 2017
  • Purpose: The world faces a great turning point fundamentally rebuilding the future, and human lives, by embracing the 4th industrial revolution era. This paper aims to seek new and various business models in the 4th industrial revolution era, and to examine the evolution of quality management in the changing of the industrial ecosystem. Methods: This paper examines the various strategies of approaching the 4th industrial revolution in Germany, the USA, Japan, China, and Korea. This paper also draws detailed items by classifying the six major items of Malcolm Baldridge into large, medium, and small scale classifications, researches items from the technical perspective by applied fields, and the four major factor perspectives of quality management, as well as analyzes the relevant items in a multidimensional method. After a questionnaire survey targeting 200 quality experts was conducted, the important quality management factors were selected by applying the Analytic Hierarchy Process (AHP) method. Results: The importance of the general criteria was analyzed in the order of customers, MAKM (measurement, analysis, and knowledge management), workforce, strategy, operations, and leadership. As for the importance analysis results of the secondary subcriteria, the following items are highly analyzed: senior leadership, searching business model's innovation opportunity, customer satisfaction improvement, big data utilization, systematic management of workforce, and, planning and design quality. Conclusion: In the era of the Internet of everything, when complexity increases, this study presented a quality management direction suitable for new business methods challenging existing orders by drawing on quality management priorities.

한강수질 평가를 위한 COD (화학적 산소 요구량) 모델 평가 (Chemical Oxygen Demand (COD) Model for the Assessment of Water Quality in the Han River, Korea)

  • Kim, Jae Hyoun;Jo, Jinnam
    • 한국환경보건학회지
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    • 제42권4호
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    • pp.280-292
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    • 2016
  • Objectives: The objective of this study was to build COD regression models for the Han River and evaluate water quality. Methods: Water quality data sets for the dry season (as of January) during a four-year period (2012-2015) were collected from the database of the Han River automatic water quality monitoring stations. Statistical techniques, including combined genetic algorithm-multiple linear regression (GA-MLR) were used to build five-descriptor COD models. Multivariate statistical techniques such as principal component analysis (PCA) and cluster analysis (CA) are useful tools for extracting meaningful information. Results: The $r^2$ of the best COD models provided significant high values (> 0.8) between 2012 and 2015. Total organic carbon (TOC) was a surrogate indicator for COD (as COD/TOC) with high reliability ($r^2=0.63$ in 2012, $r^2=0.75$ for 2013, $r^2=0.79$ for 2014 and $r^2=0.85$ for 2015). The ratios of COD/TOC were calculated as 2.08 in 2012, 1.79 in 2013, 1.52 and 1.45 in 2015, indicating that biodegradability in the water body of the Han River was being sustained, thereby further improving water quality. The BOD/COD ratio supported these findings. The cluster analysis revealed higher annual levels of microorganisms and phosphorous at stations along the Hangang-Seoul and Hantangang areas. Nevertheless, the overall water quality over the last four years showed an observable trend toward continuous improvement. These findings also suggest that non-point pollution control strategies should consider the influence of upstreams and downstreams to protect water quality in the Han River. Conclusion: This data analysis procedure provided an efficient and comprehensive tool to interpret complex water quality data matrices. Results from a trend analysis provided much important information about sources and parameters for Han River water quality management.

통계기법을 이용한 공공하수처리시설의 운영실태 평가방법 연구 (A Study on the Evaluation for Operations of Public Sewage Treatment Plants Using Statistics Technique)

  • 최인철;안태웅;유순주;정현미;권오상;김원기;염익태;손대희
    • 한국물환경학회지
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    • 제30권5호
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    • pp.524-531
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    • 2014
  • Korea has been trying to manage water quality of rivers and lakes in many ways. Ministry of Environment is making continuous efforts of operation control improvement such as strengthening effluent standards in sewage treatment plants and expanding Tele-Monitoring System (TMS). However, evaluation method for operations of sewage treatment plants and establishment system of effluent standards are inadequate. The objective of this study is to evaluate for operations of sewage treatment plants using statistics technique such as frequency analysis, percentile, normal distribution analysis. We used the effluent data (BOD, COD, SS) collected at 299 plants in 2012. The values were very low by comparison with standards. The Data followed a normal distribution. We think that distribution characteristics are closely related with effluent standards, especially T-P and BOD. Statistics technique attempted in this study can be used to evaluate for operations of sewage treatment plants and assess the appropriateness of effluent standards based on TBEL(Technology-based effluent limitation). And, this technique can be used to figure out the overall level of plants, the status of each plant and the favorable treatment process for each item (BOD, COD etc.). Data acquired through this method can be used to improve facilities and operation techniques and decide on a sewerage policy.

6 시그마 품질경영을 위한 노력이 기업의 재무적 성과에 미치는 영향분석 (The Study on Relation between Company's Efforts for Quality Management(6 sigma) and Financial Performance)

  • 박재영;류창헌;박민재;권경민;유건재
    • 품질경영학회지
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    • 제42권3호
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    • pp.361-372
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    • 2014
  • Purpose: In this paper, we investigate whether the endeavors for 6 sigma quality management by a firm have positive effects on its financial performance and the length of 6 sigma implemented period affects its financial status. Methods: We conduct the analysis using the data from Workplace Panel Survey 2009. We use multiple linear regression in order to analyze the relationship between the efforts for quality management and financial performance. Specifically, the return on assets (ROA) and return on equity (ROE) are investigated as dependent variables and the efforts for quality management as independent variable. The Box-Cox transformation and Cook's distance are also used. Results: As a result of the analysis, the indication is that companies that put effect into the six sigma quality management have a positive result in its financial status. In detail, the efforts for six sigma quality management have positive effects on total asset turnover ratio and six sigma implemented period on net income to net sales ratio. Additionally, companies with longer(shorter) period of six sigma program have more (less) improvement in its financial status. Conclusion: It can be concluded that the company's efforts for quality management positively influence financial performance.

한의사의 간접구 이용실태에 대한 조사 연구 (Survey on the Status of Utilization of mediate Moxibustion by Korean Medicine Doctor)

  • 이은경;한승준;정명수
    • 대한예방한의학회지
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    • 제17권2호
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    • pp.105-127
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    • 2013
  • Objectives : We examined the use of the moxibustion through survey on Korean Medicine Doctors (KMDs) on preparation of universal moxa product standard by fully reflecting opinions of practitioners and the industry. Methods : The questionnaire is composed of 25 questions including use of indirect moxa, side effects, complaints and improvements, general characteristics and so on, and were responded by 1,588 KMDs. For statistics, frequency analysis, chi-square analysis, T-test and ANOVA were conducted using SPSS 12.0 for windows, and the significance level was 0.05. Results : In this research, 91% of the responded KMDs was using moxibustion, and the proportion of using mediate moxibustion was shown as 63.2%. They used mediate moxibustion for side effects of direct moxa method such as risk of burn, ease of use, control of stimulation and so on. And it was mostly being conducted to women and 40 ages. Most respondents gave moxibustion treatments for the purpose of thermal stimulation on acupoint to musculoskeletal diseases. Most respondents were treating 1~2 pieces of moxibustion to patients by moxibustion points to those of 1~2 regions every time within 10 minutes. Regarding the frequency of side effects of mediate moxibustion, within 3% of respondents had experienced side effects, and the types were burn, flare and itchiness, odor and smoke. The dissatisfaction of mediate moxibustion products was moderate(2.00 out of 5 point scale), and went up public health doctors, the younger ages and the shorter clinical experience. Complaints on mediate moxibustion products were serious odor, poor attachment, risk of burn etc. Regarding ways to improve mediate moxibustion, the expansion of moxibustion's insurance cost carne out highest, followed by preparation of manual on efficacy, strengthening of training, acquiring evidence on efficacy, diversification of specifications, safety improvement, quality improvement of mediate moxibustion products. Conclusions: Many KMDs use for ease of use and give moxibustion treatments for thermal stimulation but they complain about safety, efficacy and quality of mediate moxibustion. After this it is considered that we have to elevate therapeutic effect through the improvement of mediate moxibustion products.

남성 만성폐쇄성폐질환자의 삶의 질 관련요인 (Related Factors of Quality of Life in Male Patients with Chronic Obstructive Pulmonary Disease)

  • 이해정;지영주
    • 성인간호학회지
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    • 제23권4호
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    • pp.309-320
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    • 2011
  • Purpose: The purpose of the study was to examine the related factors of quality of life (QOL) among patients with Chronic Obstructive Pulmonary Disease (COPD). Methods: Patients diagnosed with COPD (N=230) were recruited from four hospitals in Kyeong-Nam province, from March 2 to November 30, 2010. The data collection instruments were the Short Form 36, perceived dyspnea measure by Modified Medical Research Council, COPD and Asthma Sleep Impact Scale, COPD Self-efficacy Scale, and Center for Epidemiologic Studies Depression Scale were used. Following the completion of the data collection instruments Pulmonary function was tested. Data were analyzed with descriptive statistics, Pearson correlation and simultaneous multiple regression using SPSS/WIN. Results: The mean QOL of this study was 68.24. Using a multivariate approach, the significant correlates of QOL were depression (${\beta}$=-.37), dyspnea (${\beta}$=-.28), self-efficacy (${\beta}$=.20), and a sufficient degree of household income (${\beta}$=.16). These variables explained 49% of variance in QOL. Conclusion: The study suggests that psychological aspects are an important factor in explaining QOL of the patients. Screening and minimizing depression could be effective strategies in enhancing QOL of patients with COPD and further investigation to reduce depression could warrant the improvement of QOL in patients with COPD.

노인의 주관적 구강건조증과 악기능제한 관련 삶의 질 (Subjective Xerostomia and Jaw Functional Limitation Related Quality of Life of the Elderly)

  • 김미경;정향미;박공주
    • 보건의료산업학회지
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    • 제8권1호
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    • pp.87-102
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    • 2014
  • This study is a descriptive research one and its purpose is to understand subjective xerostomia, JFL and quality of life of the elderly and to apprehend its variable correlation and variables which influence on the OHRQOL. Subjects in this study were over 65-year-old the elderly in city B and the data of 116 ones were collected using the questionnaires from May 6, 2013 to June 7 from them. Collected data were analyzed as descriptive statistics, t-test, one-way ANOVA, Sheffe, Pearson's correlation coefficient and Multiple Regression using program SPSS 18.0. The most influenced factors of OHRQOL were JFL(${\beta}$=-.366), xerostomia(${\beta}$=-.248) and diseases of oral cavity (gingivitis)(${\beta}$=-.172) in order. These factors occupied 73% of OHRQOL. Therefore, development of nursing intervention to develop a program for the improvement in behavior and education to reduce xerostomia, JFL, gingivitis and to improve the OHRQOL elderly development of nursing interventions are required.