• Title/Summary/Keyword: high order statistics

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Competitiveness of Korea in World Pollack Markets for WTO/NAMA Negotiation (WTO/NAMA협상 대비 국제명태시장에서의 우리나라 경쟁력)

  • Jang Young-Soo;Song Jung-Hun
    • The Journal of Fisheries Business Administration
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    • v.37 no.2 s.71
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    • pp.85-109
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    • 2006
  • This study is aimed to investigate the structure of world pollack markets and the position/competitiveness or Korea for WTO/NAMA Negotiation. First or all, it is clearly pointed out that many limitations and problems are inherent in FAO statistics that is widely utilized to investigate the structure of international seafood markets. Especially, it is impossible to find not only the data for Russia that is the top production and export country of pollack, but also the data for importing/exporting countries for pollack. In order to make up for these problems, the data for export and import of major countries are collected and analyzed. The results of analysis show the followings. First, it is clearly investigated that classification of fish products are different for countries. Second, it is understood the structure of international pollack market in actuality. The pollack market is segmented by frozen, fresh, dried, fillet, roe, surimi, etc. In addition, the pollack market has grown as much as 600,000 tons in amount and $1.2billion in value. Third, competitiveness of Korea in international pollack markets is measured quantitatively. It shows that Korea has low RAC index and TSI index, but high RMI index. Thus, it is identified that Korea becomes the largest pollack importing country. Fourth, the partial equilibrium analysis on pollack import market of Korea indicates that the frozen pollack has both price elasticity and substitution elasticity, while the fresh pollack has income elasticity.

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Nutritional Status and Risk Factors for Malnutrition in Low-income Urban Elders (도시 빈곤노인의 영양상태와 영양불량 위험 요인)

  • Hyun, Hye Sun;Lee, Insook
    • Journal of Korean Academy of Nursing
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    • v.44 no.6
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    • pp.708-716
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    • 2014
  • Purpose: The purpose of this study was to evaluate the nutritional status of low-income urban elders by diversified ways, and to analyze the risk factors for malnutrition. Methods: The participants in this study were 183 low-income elders registered at a visiting healthcare facility in a public health center. Data were collected using anthropometric measurements, and a questionnaire survey. For data analysis, descriptive statistics, ${\chi}^2$-test, t-test, Fisher's exact test, multiple logistic regression analysis were performed using SPSS 20.0. Results: Regarding the nutritional status of low-income elders as measured by the Mini Nutritional Assessment (MNA), 10.4% of the elders were classified as malnourished; 57.4% as at high risk for malnutrition; and 32.2% as having normal nutrition levels. The main factors affecting malnutrition for low-income elders were loss of appetite (OR=3.34, 95% CI: 1.16~9.56) and difficulties in meal preparation (OR=2.35, 95% CI: 1.13~4.88). Conclusion: In order to effectively improve nutrition in low-income urban elders, it is necessary to develop individual intervention strategies to manage factors that increase the risk of malnutrition and to use systematic approach strategies in local communities in terms of a nutrition support system.

Stress and Self-Esteem Related to Clinical Practices in Selected Dental Hygiene Departments (일부 치위생과 학생들의 임상실습 스트레스와 자아존중감에 대한 연구)

  • choi, Sung-Suk;Lee, Yun-Hui
    • Journal of Korean Clinical Health Science
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    • v.5 no.3
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    • pp.953-962
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    • 2017
  • Purpose. This study was conducted in order to identify levels of stress and self-esteem related to clinical practices of dental hygiene department students. Methods. Data was collected from a group of 249 students from October to November 2015, in the Yeong-nam region. Data analysis was performed using descriptive statistics frequency and t-test, logistic regressions by a SPSS WIN 18.0 program. Results. The results indicate that the characteristics of those who appeared to practice managing teaching was higher than that of the stress levels of clinical practice(p=.044). As well. personal relations(p=.013), degree of major satisfaction(p=.001), levels of satisfaction of practice(p=.019) resulted in higher levels of self esteem. The stress levels of clinical practice and high levels of satisfaction of practice were reduced and resulted in a dental hygienic negative correlation(p=.016). Self-esteem levels increased significantly according to personal relations(p=.001) and satisfaction of practice(p=.014). Conclusion. A strategy for development of a method to reduce the stress of clinical practice among individuals and an improvement of self-esteem programs which is necessary for dental hygiene students.

The Effects of Job Demands and Job Resources on Burnout and Engagement among School Health Teachers (직무요구와 직무자원이 보건교사의 소진과 열의에 미치는 영향)

  • Kwon, Eun-Jeong;Kim, Souk Young
    • Journal of the Korean Society of School Health
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    • v.30 no.2
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    • pp.103-112
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    • 2017
  • Purpose: The Purpose of this study was to examine school health teachers' burnout, engagement, job demands and job resources and to identify the factors that influence burnout and engagement. Methods: The participants were 222 school health teachers working in elementary, middle or high schools. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and hierarchical multiple regression. Results: The significant factors influencing burnout were rewards (${\beta}=-.51$), autonomy (${\beta}=-.15$), and job demands (${\beta}=.13$). These factors explained 42% of the variance in burnout. The significant factors influencing engagement were feedback (${\beta}=.49$), rewards (${\beta}=.21$), type of employment (${\beta}=.15$) and autonomy (${\beta}=.13$). These factors explained 49% of the variance in engagement. Conclusion: The study showed that job demands increase burnout, while job resources such as rewards and autonomy alleviate it. In addition, job resources, such as feedback, rewards and autonomy, increase engagement among school health teachers. Therefore, in order to reduce burnout and increase engagement among school health teachers, it is necessary to reduce the level of job demands and to provide enough job resources such as rewards, autonomy and feedback by improving the job environment.

Impact of Nurse Staffing Level and Oral Care on Hospital Acquired Pneumonia in Long-term Care Hospitals (요양병원의 간호인력 확보수준과 구강간호 실시여부가 노인 환자의 폐렴발생에 미치는 영향)

  • Chae, Jung Mi;Song, Hyunjong;Kang, Gunseog;Lee, Ji Yun
    • Journal of Korean Academy of Nursing Administration
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    • v.21 no.2
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    • pp.174-183
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    • 2015
  • Purpose: This study was conducted to explore the impact of nurse staffing level and oral care on pneumonia in elderly inpatients in long-term care hospitals (LTCHs). Methods: Data were obtained from the Health Insurance Review and Assessment Services (HIRA) including the profiles of LTCHs, monthly patient assessment reports and medical report survey data of pneumonia patients by HIRA in the fourth quarter of 2010. The sample consisted of 37 LTCHs and 6,593 patients. Results: Patient per nurse staff (OR=1.43, CI=1.22~1.68) and no oral care (OR=1.29, CI=1.01~1.64) were significantly related with hospital acquired pneumonia. The difference in percent of oral care by hospital was not significant between high and low group in nurse staffing level. Conclusion: In order to reduce the occurrence of pneumonia in eldery patients, effective nursing interventions are not only required but also nurse staffing levels that enable nurses to provide the intervention.

A Study for Development of Smart Taekwondo Uniform with Enhanced Functionality for Children (기능성이 향상된 아동용 스마트 태권도복 개발을 위한 연구)

  • Kim, Kyung-A
    • Journal of the Korea Fashion and Costume Design Association
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    • v.11 no.2
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    • pp.169-181
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    • 2009
  • The purpose of this study was to provide basic information for developing a smart taekwondo uniform with enhanced functionality for children by investigating the wearing condition and satisfaction of taekwondo uniform among taekwondo training children. The data were collected from 162 children living in Seoul and Daegu. For data analysis were performed descriptive statistics, ${\chi}2$ -test and t-test using SPSS Ver. 12. The results of the analysis are as follows. The results revealed that respondents wearing the general training uniform during their training period were the most. The dissatisfaction for the general training uniform was a high price, lack of symbolic, lack of functionality in textiles, lack of variety in design and unfittness of size in order. The developed uniform can adjust the length using a zipper type fastener, and can be used in all seasons as the lining is detachable. It also uses nano-silver material, and soil release finish. It enhances the functionality of movement by treating with raglan sleeve and sleeve hem velcro tape, and designs the upper garment in the draping. Safety is improved through attaching GPS, and elastic material is mixed in the neckline for putting on and off easily. Piece of cloth is added inside the closing of the upper garment. Rings are made for fixing the taekwondo uniform belt. Pocket is designed in the lower garment and colors are multiplied.

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A Study on the Sexual Dysfunction for Diabetic Women (당뇨여성의 성기능 장애 조사연구)

  • Jin, Dong-Sun;Park, Jee-Won
    • The Korean Journal of Rehabilitation Nursing
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    • v.10 no.1
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    • pp.37-44
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    • 2007
  • Purpose: The purpose of this study was to investigate the sexual dysfunction of diabetic women in order to provide basic data contributed in nursing intervention. Method: A convenience sample consisted of 67 subjects with diabetes who attended outpatient department of 2 university hospitals. After verbal consent was obtained, subjects were asked to complete a questionnaire including BISF-W developed by Taylor et al. Data were collected from April 27 to May 22, 2006, and were analyzed by descriptive statistics, t-test, oneway ANOVA using SPSS 12.0 program. Results: This study discovered that the degree of sexual dysfunction of women with diabetes was high, and in particular that most of the women with diabetes did not have satisfactory sex life because of lack of vaginal lubrication, lower sexual desire, lower orgasm, and sexual pain. The test of differences in sexual dysfunction according to demographic and disease-related characteristics revealed that significant differences existed only with regard to menopause and age. Conclusion: As the sexual function of women varies widely among individuals, we would like to emphasize the importance of sexual counseling and education programs to improve the quality of life of diabetic women to prevent or relieve their sexual dysfunction.

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Model-Robust G-Efficient Cuboidal Experimental Designs (입방형 영역에서의 G-효율이 높은 Model-Robust 실험설계)

  • Park, You-Jin;Yi, Yoon-Ju
    • IE interfaces
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    • v.23 no.2
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    • pp.118-125
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    • 2010
  • The determination of a regression model is important in using statistical designs of experiments. Generally, the exact regression model is not known, and experimenters suppose that a certain model form will be fit. Then an experimental design suitable for that predetermined model form is selected and the experiment is conducted. However, the initially chosen regression model may not be correct, and this can result in undesirable statistical properties. We develop model-robust experimental designs that have stable prediction variance for a family of candidate regression models over a cuboidal region by using genetic algorithms and the desirability function method. We then compare the stability of prediction variance of model-robust experimental designs with those of the 3-level face centered cube. These model-robust experimental designs have moderately high G-efficiencies for all candidate models that the experimenter may potentially wish to fit, and outperform the cuboidal design for the second-order model. The G-efficiencies are provided for the model-robust experimental designs and the face centered cube.

The Effect of Discrimination Experience on Job Engagement in Office Workers (사무 종사자의 차별경험이 직무열의에 미치는 영향)

  • Kim, Duck Jin;Lee, Hyun Ju
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.4
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    • pp.996-1007
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    • 2020
  • The purpose of this study was to investigate the general characteristics, working condition, discrimination experience and job engagement of office workers and to examine the effect of discrimination experience on job engagement. This study was the secondary analysis of date from the fifth Korean Working Conditions Survey and the subjects included 6,718 office workers. Collected data were analyzed using descriptive statistics, x2-test, t-test, and complex samples general linear model(CSGLM). As a result, job engagement was high when they never experienced discrimination. Based on the results of this study, in order to improve job engagement of office workers, manage to prevent discrimination in the workplace should be included.

Impact of Foreign Direct Investment and International Trade on Economic Growth: Empirical Study in Vietnam

  • NGUYEN, Hieu Huu
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.3
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    • pp.323-331
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    • 2020
  • The study aims to assess the impact of foreign direct investment (FDI) and international trade (export and import) on Vietnam's economic growth for the 2000-2018 period. Secondary data is taken from the General Statistics Office of Vietnam. Ordinary least-square method is used in analyzing the impact of FDI, export and import on economic growth of Vietnam. Empirical test results show that FDI and international trade are related to Vietnam's economic growth. However, each economic variable has a different impact. FDI has a positive and statistically significant influence on economic growth of Vietnam. Export also has positive and statistically significant impact to the economic growth, while import has a negative but not statistically significant effect. The result is useful for the policy makers of Vietnam on foreign economic relations. In order to improve the effect of FDI and international trade on growth of the economy, the government of Vietnam should: (1) continue applying preferential policies to attract FDI; (2) select foreign investors aiming to quality, efficiency, high technology and environmental protection; (3) continue pursuing export-oriented policy; (4) enhance the added value of exported goods and control the type of imported goods; (5) further liberalize trade through signing and implementation of international trade commitments.