• Title/Summary/Keyword: higher-order statistics

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Development of an Instrument to Measure Triage Nursing Work in Emergency Room (응급실 초진간호업무 측정도구 개발)

  • Yu, Kyoung-Hee;Jang, Keum-Seong
    • The Journal of Korean Academic Society of Nursing Education
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    • v.21 no.4
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    • pp.477-489
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    • 2015
  • Purpose: The purpose of this study was to develop an instrument to assess emergency room nurses' knowledge and performance of triage nursing. Methods: The instrument was developed through the stages of conceptual construction, item development, and validity and reliability testing. For the validity and reliability testing, data collected from 48 emergency room nurses using questionnaires was analyzed through descriptive statistics, factor analysis, and reliability coefficients. Results: The knowledge part consisted of 30 items in nine areas, and its reliability was low (KR-20 =0.50). The correct-answer rate was 71.8%. The performance section derived from the factor analysis was composed of two factors with nine items in the triage domain and three factors with 12 items in the non triage domain. The explanatory powers of these factors for the domains were 66.1% and 70.4%, respectively. The overall reliability (Cronbach's ${\alpha}$) was .95, and the reliabilities for the two domains were .88 and .91, respectively. The nurses' mean performance level was 3.2(${\pm}0.45$). Conclusion: The specific contents of the triage nursing work were identified from the developed scale; further research is necessary to in order to develop a scale capable of higher reliability and validity.

Effects of Social Support and Ego-resilience on Nursing Performance of Hospital Nurses (사회적 지지와 자아탄력성이 병원간호사의 간호업무 성과에 미치는 영향)

  • Lee, An Saeng;Yoon, Chi-Keun;Park, Jin Kyu
    • Korean Journal of Occupational Health Nursing
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    • v.21 no.3
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    • pp.283-289
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    • 2012
  • Purpose: The purpose of this study was to identify the effects of the social support and ego-resilience on the nursing performance among hospital nurses. Methods: The subjects of this study were 369 nurses in a senior general hospital. We used the self-reported questionnaire to assess the level of ego-resilience, social support and nursing performance of hospital nurses. The data were analyzed using descriptive statistics, frequency, t-test, ANOVA, Pearson's correlation coefficient and stepwise multiple regression. Results: This study showed the positive relationship between the social support and ego-resilience on tne the nursing performance of hospital nurses. The higher group of the social support and ego-resilience showed the more performance of hospital nurses. And, the influencing factors on the performance are age, ego-resilience, social support, night working days a month in the order. Conclusion: Further studies will be needed to promote the performance of nurse in hospital and policies to be develop to elevate the social support and ego-resilience of nurses.

Knowledge, Health Belief, and Preventive Behavioral Intention related to Venous Thromboembolism (VTE) of the Patients with Lower Limb Musculoskeletal System Disorders (근골격계 하지손상환자의 정맥혈전색전증 관련 지식과 건강신념 및 예방행동의도)

  • Yang, Hye Jin;Kang, Hee-Young
    • The Journal of Korean Academic Society of Nursing Education
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    • v.19 no.4
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    • pp.531-541
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    • 2013
  • Purpose: This study was done to examine the relationship among knowledge, health belief, and preventitive behavioral intention related to venous thromboembolism (VTE) in patients with lower-limb musculoskeletal disorders. Methods: This transversal descriptive study looked at 145 adult patients with lower-limb musculoskeletal disorders, who were hospitalized in C hospital in G city. Data were collected from September 29 to October 6, 2012. Knowledge, health belief and preventitive behavioral intention were measured by structured questionnaires. Date were analyzed by descriptive statistics, one-way ANOVA, independent t-test, and Pearson correlation, using the SPSS program. Results: The mean score of knowledge related to VTE was low. The mean scores of health belief and preventitive behavioral intention related to VTE were moderate or higher than average. Preventitive behavioral intention positively correlated with knowledge, perceived benefit, and health motivation. Whereas, there was a negative correlation between preventitive behavioral intention and perceived barriers. Conclusion: These results suggest that developing a health care program which is able to enhance knowledge, perceived benefit, and health motivation related to VTE and reduce perceived barriers, is essential in order to promote preventitive behaviors.

The Effects of a Preventive Tailored Early Intervention Program for the Quality of Parenting of Low Income Families (영아 어머니의 양육행동지원을 위한 맞춤형 예방 중재 프로그램 개발 및 효과: 저소득층을 중심으로)

  • Park, Shin-Jin;Lee, Young
    • Journal of the Korean Home Economics Association
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    • v.49 no.6
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    • pp.67-83
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    • 2011
  • The purposes of this study were to a develop a preventive tailored early intervention program and to investigate the effects of the program on the quality of parenting for low income families. The subjects were eighty five infants, aged 13 to 32 months, and their mothers. Of the 85 mother-infant dyads, 42 dyads were randomly assigned to the experimental group and 43 dyads to the control group. To prevent the risks of the adverse development of infants from low income families a tailored intervention program was created based upon the transactional model. This emphasized the quality of the home environment and of the daily mother-infant interaction. The risk factors were assessed and progress monitoring was undertaken for the preventive tailored intervention treatment. In order to assess the effects of the program, HOME, the NCAST Teaching Scale and the Parenting Stress Index/Short From were used. The collected data were analyzed with descriptive statistics, ANCOVA, and the McNemar test. The experimental group showed a significant increase in performance and higher scores than the control group on the scores from HOME, and the NCAST Teaching Scale and significant decrease and lower scores in the Parenting Stress Index(SF).

A TWO-STAGE SOURCE EXTRACTION ALGORITHM FOR TEMPORALLY CORRELATED SIGNALS BASED ON ICA-R

  • Zhang, Hongjuan;Shi, Zhenwei;Guo, Chonghui;Feng, Enmin
    • Journal of applied mathematics & informatics
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    • v.26 no.5_6
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    • pp.1149-1159
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    • 2008
  • Blind source extraction (BSE) is a special class of blind source separation (BSS) methods, which only extracts one or a subset of the sources at a time. Based on the time delay of the desired signal, a simple but important extraction algorithm (simplified " BC algorithm")was presented by Barros and Cichocki. However, the performance of this method is not satisfying in some cases for which it only carries out the constrained minimization of the mean squared error. To overcome these drawbacks, ICA with reference (ICA-R) based approach, which considers the higher-order statistics of sources, is added as the second stage for further source extraction. Specifically, BC algorithm is exploited to roughly extract the desired signal. Then the extracted signal in the first stage, as the reference signal of ICA-R method, is further used to extract the desired sources as cleanly as possible. Simulations on synthetic data and real-world data show its validity and usefulness.

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Clothing Evaluation Criteria and Purchase Intention based on Consumers′ Clothing Shopping Orientation in Cyber Shopping (사이버쇼핑 이용자의 의류쇼핑성향에 따른 의류제품 평가기준과 구매의도)

  • 안민영;박재옥
    • Journal of the Korean Society of Clothing and Textiles
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    • v.27 no.7
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    • pp.789-799
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    • 2003
  • The purpose of this study was to find out clothing evaluation criteria and purchase intention according to consumers' shopping orientation and demographic factors when they shop online. The subjects were 240 men and women living in the metropolitan area. For data analysis, factor analysis, cluster analysis, ANOVA, t-test, Duncan test and descriptive statistics were conducted. The results are as follows: 1. Important clothing evaluation criteria were considered in order of price, style, fit, size and product guarantee etc. Purchase intention was showed more highly when products are related to low involvement than high involvement. 2. Consumers with high hedonic and utilitarian shopping orientation considered clothing evaluation criteria more importantly but showed low level of purchase intention in cyber shopping. And consumers with low hedonic and utilitarian shopping orientation considered clothing evaluation criteria less importantly but showed high level of purchase intention in cyber shopping. 3. There were significant differences in evaluation criteria and purchase intention according to demographic variables. Especially women considered evaluation criteria more importantly and had higher level of purchase intention than men.

Application of Rasch Analysis to the Modified Oswestry Low Back Pain Disability Questionnaire for Work-Related Low Back Pain Patients (수정된 오스웨스트리 허리기능 장애 설문지의 라쉬분석: 산업장에서의 업무관련 요통환자를 대상으로)

  • Park, So-Yeon;Oh, Jae-Seop;Yi, Chung-Hwi
    • Physical Therapy Korea
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    • v.15 no.3
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    • pp.26-34
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    • 2008
  • The purposes of this study were to assess and modify the original classification categories of the modified Oswestry Low Back Pain Disability Questionnaire (ODQ) and to determine the unidimensionality of the modified ODQ applying Rasch Analysis. The data were obtained from 108 work-related low back pain patients by physical therapists. Construct validity of the scale using the Rasch model required the structure of the rating scale to be modified from 6 response levels to 4 response levels. Eight items from the modified ODQ fit the Rasch model. The items, "pain intensity" and "social life" showed misfit statistics. In general, the order of item difficulty of the remaining 8 items showed a logical item difficulty hierarchy with the "changing degree of pain" item being the most difficult and the "walk" item being the easiest. The results showed that further study is needed to expand the construct of ODQ including additional higher-level items related to work activities. This study may be useful for establishing a standard method to assess the functionality of low back pain patients.

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Self-efficacy, Depression and Health Promotion Behaviors of Nursing and Non-nursing Female College Students (간호계열과 비간호계열 여대생의 자기효능감, 우울 및 건강증진행위)

  • Jeong, Yeon-Hee;Song, Min Sun
    • The Journal of Korean Academic Society of Nursing Education
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    • v.24 no.3
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    • pp.290-299
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    • 2018
  • Purpose: The purpose of this study was to compare the self-efficacy, depression, and health promotion behaviors of nursing and non-nursing female college students, and to develop a program to improve the health promotion behaviors of female college students. Methods: One hundred sixty-six females (84 nursing, 82 non-nursing) college students participated in the study. Data collection was conducted between November 20 and December 8, 2017. Data was analyzed using descriptive statistics, ${\chi}^2$ test, ANCOVA, t-test, ANOVA, Pearson's correlation coefficients and stepwise multiple regression analysis with the SPSS/WIN 22.0. Results: The results of health promotion behaviors of the nursing college students were higher than non-nursing college students (F=7.14, p=.008). Both nursing and non-nursing college students showed a positive correlation between health promotion behaviors and self-efficacy, and there was a negative correlation between health promotion behaviors and depression. Self-efficacy was the most influential factor in health promotion behaviors for both nursing and non-nursing female college students. Conclusion: In order to improve the health promotion behaviors of female college students, it is necessary to educate individuals to help them improve their self-efficacy and be able to maintain healthy lifestyles by perceiving and managing their own health conditions.

Impact of Exchange Rate Shocks, Inward FDI and Import on Export Performance: A Cointegration Analysis

  • NGUYEN, Van Chien;DO, Thi Tuyet
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.4
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    • pp.163-171
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    • 2020
  • The study aims to examine the effects of inward every presence of foreign investment, import, and real exchange rate shocks on export performance in Vietnam. This study employs a time-series sample dataset in the period of 2009 - 2018. All data are collected from the General Statistics Office of Ministry of Planning and Investment in Vietnam, World Development Indicator and Ministry of Finance, State Bank of Vietnam. This study employs the Augmented Dickey-Fuller test and the vector error correction model with the analysis of cointegration. The results demonstrate that a higher value of import significantly accelerates export performance in the short run, but insignificantly generates in the long run. When the volume of registered foreign investment goes up, the export performance will predominantly decrease in the both short run and long run. Historically, countries worldwide are more likely to devaluate their currencies in order to support export performance. According to the study, the exchange rate volatility has an effect on the external trade in the long run but no effect in the short run. Finally, Vietnam's export performance converges on its long-run equilibrium by roughly 6.3% with the speed adjustment via a combination of import, every presence of foreign investment, and real exchange rate fluctuations.

Development of Atmospheric Environmental Sensitivity Index by Socio-Statistical Survey (사회통계조사에 의한 대기환경 체감지수의 개발)

  • Kim Hyun-Goo;Lee Yung-Seop;Koo Cha-Mun;Ko Yu-Na
    • Journal of Korean Society for Atmospheric Environment
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    • v.22 no.4
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    • pp.421-430
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    • 2006
  • This paper explores a new methodology of socio-statistical survey to classify environmental perception characteristics and to quantify atmospheric environmental sensitivity of neighboring people around a large industrial complex. In order to compensate intrinsic inclination against environmental problems, Atmospheric Environmental Sensitivity Index (AESI) is proposed as the weighted-summation of four representative questions asking the current status of the local air quality, which are chosen by the factor analysis of questionnaire. Atmospheric environmental perception is tried to be classified into interest/indifference characteristics and rational/emotional perception on environmental issues, positive/negative opinion on the solution of environmental problems. According to the chi-square cross-correlation and two-way layout analyses, it was clearly shown that environmental perception is categorized into two major groups, i.e., the positive-rational group having lower AESI and the negative-emotional group having higher AESI which means more seriously senses the status of local air quality.