• 제목/요약/키워드: Analysis of variances

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최종사용자 컴퓨팅의 실태와 최종사용자 개인적 특성에 관한 연구 (A Study on the Current Status of EUC andindividual Characteristicsofend-users in Korean Firms)

  • 김상수
    • 한국산업정보학회:학술대회논문집
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    • 한국산업정보학회 1996년도 추계 학술 발표회 발표논문집
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    • pp.5-26
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    • 1996
  • This study has two research objectives related to end-user computing (EUC) . One of the research objectives was to investigate the current status of EUC of Korean firms. Another research objective was to examine the relationship between individual difference of end-users and EUC success. Using survey data from 752 end-users of 23 firms, the surrent status of EUC and the relationship between individualdifferences of end-users and EUC success were investigated. The current status of EUC was examined from six perspectives : 1) what is the characteristics of EC strategy of Korean firms , 2) what are the individual characteristics of end-users in Korean firms, 3) what are the characteristics of tasks performed by end-users using computer 4) what are the application a areas of EUC 5) How end-users are satisfied with the support of firms, 6) what are system usage and satisfaction of end-users. It was also found that individual differences of endf-users are related to EUC success.More specifically , it was shown that the male gender, younger age, higher level of education , higher ran아 and organizational tenure, higher math ability , thinking type of cognitive style, positive and optimistic attitudes toward computer, more experience with computer, more computer education and knowledge are individual differences variables associated with EUC success. The results of stepwise regression analysis suggested that the individuaal difference variables accounted for 14%, 25% 39% and 30% of the variances of four EUC success variables, satisfaction for outcome , satisfaction for ability , frequency of computer use, and thenuber of tasks, respectively. These empirical findings suggest that EUC managers should consider individual differences of end-users in managing EUC , such as education, training, support, and human resource management , to maximize potential benefits of EUC.

Correlations of Genic Heterozygosity and Variances with Heterosis in a Pig Population Revealed by Microsatellite DNA Marker

  • Zhang, J.H.;Xiong, Y.Z.;Deng, C.Y.
    • Asian-Australasian Journal of Animal Sciences
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    • 제18권5호
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    • pp.620-625
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    • 2005
  • Correlation of microsatellite heterozygosity with performance or heterosis was reported in wild animal populations and domestic animal populations, but the correlation with heterosis in a crossbreeding F$_1$ pig population remained uncertain. To explore this, we had random selected and mated Yorkshire${\times}$Meishan (F, n = 82) and their reciprocal (G, n = 47) to F$_1$, and used the two straightbreds as control groups (Yorkshire = 34, Meishan = 55), and observed the heterosis of birth weight (BWT), average daily gain (ADG) and feed and meat ratio (FMR). Two Kinds of measurement-individual heterozygosity (IH) and individual mean d$^2$ (lg value, ID) were used as index of heterozygosity and variance from 39 microsatellite marker loci to perform univariate regression analysis against heterosis. We detected significant correlation of IH with BWT in all of F$_1$ (F+G) and in F. We observed significant correlation of ID with ADG in all of F$_1$ (F+G), and with FMR in all of F$_1$ (F+G) and in F. There was significant maternal effect on heterosis, which was indicated by significant difference of means and distribution of heterosis between F and G. This difference was consistent with distributions of IH and ID, and with difference of means in F and G. From this study, it would be suggested that the two kinds of genetic index could be used to explore the genetic basis of heterosis in crossbreeding populations but could not determine which is better.

재가노인의 시청각기능장애가 일상생활수행능력에 미치는 영향 (The Influences of Visual and Hearing Impairment on Activities of Daily Living for the Community Dwelling Elderly)

  • 박은옥;김은영;김희걸;소애영;이꽃메;전경자
    • 지역사회간호학회지
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    • 제12권2호
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    • pp.417-427
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    • 2001
  • Purpose: The aim of this study is to identify the influence of visual and hearing impairment on the activities of daily living of community dwelling elderly. Methods: Data were collected by home visiting interviewers from 452 older people aged 65 years or older living in community. Resident Assessment Instrument MDS-HC(2.0version) was used for data collection. Data analysis for descriptive statistics, Chi-square test and multiple regression was made by SAS 6.2 Results: 34.7% of the subject had hearing impairment and 64.3% had visual impairment Among IADL. one half of them were dependent in ordinary house work and meal preparation. In the case of ADL. 13.9% of subjects were dependent in bathing and 8.9% in personal hygiene. There was significant difference in IADL performance by visual and hearing impairment On the other hand, ADL performance showed the significant difference. only in the case of hearing impairment. As the result of input of visual and hearing impairment in the process of regression. variances were increased from 3% to 11%. Conclusions: Large proportions of older people living in the community have visual and hearing impairment. It could be confirmed that hearing and vision were significant factors influencing on IADL performance of older people. Intervention and support policy for elderly needs to focus on improvement of visual and hearing impairment.

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Neurocognitive Function Differentiation from the Effect of Psychopathologic Symptoms in the Disability Evaluation of Patients with Mild Traumatic Brain Injury

  • Kim, Jin-Sung;Kim, Oh-Lyong;Koo, Bon-Hoon;Kim, Min-Su;Kim, Soon-Sub;Cheon, Eun-Jin
    • Journal of Korean Neurosurgical Society
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    • 제54권5호
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    • pp.390-398
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    • 2013
  • Objective : We determined whether the relationship between the neuropsychological performance of patients with mild traumatic brain injury (TBI) and their psychopathological characteristics measured by disability evaluation are interrelated. In addition, we assessed which psychopathological variable was most influential on neuropsychological performance via statistical clustering of the same characteristics of mild TBI. Methods : A total of 219 disability evaluation participants with mild brain injury were selected. All participants were classified into three groups, based on their psychopathological characteristics, via a two-step cluster analysis using validity and clinical scales from the Minnesota Multiphasic Personality Inventory (MMPI) and Symptom Checklist-90-revised (SCL-90-R). The Korean Wechsler Adult Intelligence Scale (K-WAIS), Korean Memory Assessment Scale (K-MAS) and the Korean Boston Naming Test (K-BNT) were used to evaluate the neurocognitive functions of mild TBI patients. Results : Over a quarter (26.9%) experienced severe psychopathological symptoms and 43.4% experienced mild or moderate psychopathological symptoms, and all of the mild TBI patients showed a significant relationship between neurocognitive functions and subjective and/or objective psychopathic symptoms, but the degree of this relationship was moderate. Variances of neurocognitive function were explained by neurotic and psychotic symptoms, but the role of these factors were different to each other and participants did not show intelligence and other cognitive domain decrement except for global memory abilities compared to the non-psychopathology group. Conclusion : Certain patients with mild TBI showed psychopathological symptoms, but these were not directly related to cognitive decrement. Psychopathology and cognitive decrement are discrete aspects in patients with mild TBI. Furthermore, the neurotic symptoms of mild TBI patients made positive complements to decrements or impairments of neurocognitive functions, but the psychotic symptoms had a negative effect on neurocognitive functions.

운동실천 수준에 따른 한국인의 식품 및 영양소 섭취양상에 관한 연구 (Identification of the Dietary Intake Patterns of Korean Adults according to Their Exercise Levels)

  • 김영옥
    • 대한지역사회영양학회지
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    • 제7권6호
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    • pp.769-780
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    • 2002
  • The purpose of this study was to identify the differences in dietary consumption patterns according to the exercise level of Korean adults. The study subjects were the 7,370 Koreans aged 20 years and older of the 1998 Korean Health and Nutrition Survey. The dietary assessment was conducted by means of the 24 hour recall method. Data for individual exercise behavior were collected by interviews as part of the National Health Behavior Survey. Following the analysis of variances the Duncan's Multiple Range Test was used to test the differences in food and nutrient intakes among groups with different levels of exercise. Current exercise practices were reported by 22% of the male subjects and 15% of the female subjects. Unlike observations from the American and European studies, a greater amount of meat intake was observed more frequently among high exercises group than among middle and low exercisers in the case of the male subjects. This was reflected in the increasing levels of protein and fat intake in proportion to the exercise levels. However, the food and nutrient intake patterns of female exercisers were quite different from those of the males. The least intake of fatty foods was observed among the high exercisers. Energy intake from fat was the lowest among the high exercisers. These results may imply that the motivation to exercise was quite different between male and female Koreans. This dietary pattern may have a risk of undernution. Summerizing the results, whatever the motivation of the exercise, the Korean exercisers of both sexes had unhealthy dietary pattern. Therefore, nutritional education should be conducted to encourage the eating of a balanced diet along with exercise, among Koreans of both sexes, in order to promote a healthy lifestyle.

일반건강특성에 영향을 미치는 사상체질의 심리적, 신체적 요인에 대한 연구 (Study on the Effects of Sasang Psychobiological Factors on General Health Status)

  • 채한;김윤희;박수현;황의형;권영규;이수진
    • 동의생리병리학회지
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    • 제28권4호
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    • pp.452-459
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    • 2014
  • The purpose of this study was to examine the correlation between general health condition and biopsychological traits of Sasang typology which determines the disease susceptibility and treatment responses. We had Korean Constitutional Multicenter Bank (KCMB) listed 1156 participants for measuring Sasang Personality Questionnaire (SPQ) and Body Mass Index (BMI) for biopsychological traits of each Sasang types as well as Short Form 12 (SF12) for general health status. All the analysis was performed with consideration of gender and age. We analyzed the differences in general health status between Sasang types and the correlation between general health status and biopsychological traits of Sasang typology. We also analyzed how much the selected SF12 subscales can be explained with biopsychosocial characteristics. There were no generaliszable differences among Sasang type groups in SF12, no significant correlation between biopsychological traits and SF12 Physical and Mental Component Summary. We found that there were significant correlations between SPQ-Behavior subscale and SF12 Vitality, and the regression model with SPQ-Behavior, SPQ-Emotionality, age and sex can predict 15.4% of the total variances in SF12 Vitality. We discussed the possibility that the Sasang typology is not a determinant of general health status but a moderator for the susceptibility and response. This study would contribute to the development of Sasang type-specific life nurturing program focusing on the psychological perspectives.

단축형 당뇨병 임파워먼트 측정도구의 신뢰도와 타당도 검증 (Reliability and Validity of Korean version of Diabetes Empowerment Scale Short Form)

  • 박금옥;이현진;이윤희;조정화;김보현;송영신
    • 기본간호학회지
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    • 제24권4호
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    • pp.296-303
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    • 2017
  • Purpose: The purpose of this study was to evaluate the reliability and validity of the Korean version of Diabetes Empowerment Measurement Scale Short Form (DES-SF) for use with diabetic patients in Korea. Methods: A cross-sectional descriptive study was used with 107 participants. Bilingual nursing professionals performed translation and reverse translation. Reliability and validity such as face validity, construct validity, and concurrent validity were conducted. To assess the concurrent validity, the correlation coefficients between the Korean version of the DES-SF and a concurrent scale (Diabetes Self-Efficacy Scale, DSES) were calculated. Results: In the explanatory factor analysis, a uni-dimension was proposed, the one factor accounted for 49.4% of total variances. The Korean version of the DES-SF correlated with a concurrent variable such DSES for reliability of the Korean version of the DES-SF, Cronbach's ${\alpha}=.85$. Conclusion: The findings show that the Korean version of the DES-SF is reliable and valid for evaluating empowerment in patients with diabetes in Korea.

뇌졸중 환자의 상지기능, 일상생활활동, 치료적 몰입이 삶의 질에 미치는 영향 (Influence of Upper extremity function, Activities of Daily Living, Therapeutic Flow and Quality of Life in Stroke patients)

  • 김지훈
    • 디지털융복합연구
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    • 제16권12호
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    • pp.417-425
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    • 2018
  • 본 연구의 목적은 뇌졸중 환자의 상지기능, 일상생활활동, 치료적 몰입과 삶의 질 간의 상관관계를 알아보고, 삶의 질에 영향을 미치는 요인을 파악하기 위함이다. 총 13개 병원에서 입원중인 뇌졸중 환자 249명을 대상으로 상지기능, 일상생활활동, 치료적 몰입과 삶의 질을 치료사와 연구자가 평가하였다. 그 결과, 뇌졸중 환자의 상지기능(r=.312, p<.001), 일상생활활동(r=.605, p<.001), 치료적 몰입(r=.525, p<.001)이 양의 상관관계를 나타내었다. 그리고 뇌졸중 환자의 삶의 질에 영향을 미치는 요인을 분석한 결과, 치료적 몰입(${\beta}=.344$, p<.001), 일상생활활동(${\beta}=.293$, p<.001), 발병기간(${\beta}=.145$, p<.05)은 뇌졸중 환자의 삶의 질에 유의한 영향을 미치는 변수로 확인되었으며, 이들 요인은 삶의 질을 35.9% 설명하는 것으로 나타났다(F=35.736, p<.001). 이를 통하여 치료적 몰입은 삶의 질에 영향을 미치는 중요한 요인임을 확인할 수 있었으며, 향후 치료적 몰입에 대한 계속적인 연구가 요구된다.

Perceptions of Turkish University Students about the Effects of Water Pipe Smoking on Health

  • Sahin, Sevil;Cinar, Nursan
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권11호
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    • pp.4615-4621
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    • 2015
  • Background: The popularity of the water pipe, also referred to as hookah, narghile, shisha or hubble-bubble, has increased tremendously during the past few decades. This study was conducted to determine student water pipe smoking status and perceptions about the effects of water pipe smoking on health in a state university in Ankara. Materials and Methods: This cross-sectional study was conducted between September 2014 and January 2015. The data were collected with a questionnaire and "The Scale of Perception about the Effects of Water Pipe Smoking on Health". The data obtained were evaluated in IBM SPSS (version 20.0) statistical package program in computer. One-way analysis of variance (ANOVA) was used for the analyses by checking homogeneity of variances and Student's t-test. Values of p<0.05 were considered statistically significant. Results: The total mean score obtained by young people who took part in the study was determined as ($\bar{X}=65.20{\pm}1.25$, min=33, max=75). Upon comparison of the total mean scores obtained by young people from the Scale of Perception about the effects of water pipe smoking on health and gender variable, the scores obtained by the females students were higher than those of the male students with a statistically significant difference (t=7.525, p<0.05). A statistically significant difference was observed between the total mean scores obtained by young people with cigarette and water pipe smoking status (for each, t=-3.731, p<0.05; t=-13.987, p<0.05). Conclusions: In conclusion, university students have wrong knowledge on the dangers of water pipe smoking. There was a high prevalence of using water pipes among university students. Gender significantly affected the perceptions about the effect of water pipe smoking on health in our sample.

간호대학생이 지각한 문화 역량과 간호사 자질 중요도와의 관계 (The Relationship between Cultural Competency and the Importance of Nurses' Qualities Perceived by Undergraduate Nursing Students)

  • 최경숙;이우숙;박연숙;전명희;이소영;박연우;박수영
    • 지역사회간호학회지
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    • 제27권2호
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    • pp.163-172
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    • 2016
  • Purpose: This study was conducted to investigate the relationship between cultural competency and the importance of nurses' qualities perceived by undergraduate nursing students. Methods: Researchers developed two tools for this study after reviewing the related literature and conducting research team workshops: questionnaire of cultural competency and the importance of nurses' qualities. 200 nursing students were recruited in convenient sampling to respond to these questionnaires. Of nurses' 10 qualities, major affecting factors on the cultural competency were identified by stepwise multiple regression analysis. Results: The nursing students perceived technical nursing skills and professional nursing knowledge as nurses' most important qualities. However, 'having a passion for patient care', 'demonstrating strong nursing profession's code of ethics' and 'teaching and research ability' were found as significant influencing factors on the variance of the cultural competency. These three factors explained 16% of the total variances of the cultural competency (F=13.98, p<.001). Conclusion: The educational strategies to improve cultural nursing competency need to incorporate students' expectations for the professional nurses' roles. Also, further studies need to develop reliable and valid measurement tools for cultural competency.