• Title/Summary/Keyword: Significance Level

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Linear Trend Comparison of Repeated Measures Data among Treatments with a Control (반복측정 자료에서 개제기올기를 이용한 대존군과 처리군들의 선형추세 검정법)

  • Kwon, Jae-Hoon;Kim, Dong-Jae
    • Communications for Statistical Applications and Methods
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    • v.16 no.6
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    • pp.945-957
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    • 2009
  • Repeated measurement data among several treatments with a control is often used in the field of medicine study. In this paper, we suggest a method for comparison of the linear trend of responds followed time among several treatments with a control based on repeated measurement data. First, we estimate slope from each subject and generate samples using the slope estimated previous. And then, we test the difference among treatment with a control by ANOVA F test, Jonckheere-Terpstra test, updated control group procedure using generated samples. Monte Carlo Simulation is adapted to compare the power and experimental significance levels in various configuration.

남은 음식물의 첨가.급여가 육계의 생산성 및 혈액의 성상에 미치는 영향

  • 박재홍;김은성;김상호;류경선
    • Proceedings of the Korea Society of Poultry Science Conference
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    • 2000.11a
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    • pp.102-105
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    • 2000
  • These studies were conducted to investigate the effect of dietary supplemental lincomycin at different food waste supplements on performance of broiler chicks. Diets were based corn, soybean meal and contained 3,100kcal/kg ME, 21% CP for the rest two weeks. Three levels of dietary lincomycin(LM; 0,2.2, 4.4mg/kg) and food waste(FW; 0, 7.5, 15%) were respectively inclusion in both experiments. In experiment 1, weight gain of birds fed 4.4mg/kg LM was significantly higher than no LM treatments(P<0.05). It tended to increase in 7.5% food waste treatment compared to that of control, but was not significantly different. FCR of chicks fed 2.2mg/kg LM supplement was significantly improved compared to that of other treatments Chicks fed food waste showed inferior FCR to control as dietary FW level increased(P<0.05). There was no significance in blood components among treatments. In experiment 2, weight gain of chicks fed 15% FW exhibited higher weight gain than that of other treatments. As FW supplement increased, the feed intake increased significantly(P<0.05) There was no significance in blood components except serum calcium. The results of these experiments indicated that hicks fed 4.4mg/kg LM supplements maximized growth rate of all treatments, and improved FCR in 2.2mg/kg LM.

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A Study of the Limits of Stability in Hemiplegic Patients (편마비환자의 안정성한계에 대한 연구)

  • Kwon, Oh-Yun
    • Journal of Korean Physical Therapy Science
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    • v.2 no.4
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    • pp.739-747
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    • 1995
  • The purpose of this study was to evaluate and compare the Limits of stability(LOS) in hemiplegic patients who can walking independently. The LOS was measured at stable surface, unstable surface with eye open and eye closed. In this study, 18 out-patients were evaluated who were treated at Yonsei University Medical Center Rehabilitation Hospital. In order to determine the statistical significance of results, T-test, paired t-test, and Kruskal-Wallis 1-way ANOVA were applied at 0.05 level of significance. The results were as follows: 1. The mean of lateral limits of stability was 9.89 degree. 2. The mean of anteroposterior limits of stability was 6.43 degree. 3. There was a significant difference of limits of stability between sound side and affected side(p<0.05). 4. The limits of stability was significantly decreased with eye closed(p<0.05) 5. The limits of stability was significantly decreased at unstable surface(p<0.05). 6. The limits of stability was a significant difference as spasticity degree of ankle plantar flexors(p<0.05). These results showed that the limits of stability in hemiplegic patients was more decreased than that of normal adult. In order to improve the balance in hemiplegic patients, we need to increase the limits of stability.

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The Effects of Foot Placement and Lifting on Lower Extremity Muscle Activity and Foot Pressure During Sit to Stand in Hemiparetic Patients (뇌졸중 환자의 물건 들고 일어서기 동작이 하지근 활동도 및 족저압에 미치는 영향)

  • Kim, Hee-Tag;Lim, Wan-Sang
    • Journal of Korean Physical Therapy Science
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    • v.17 no.3_4
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    • pp.29-39
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    • 2010
  • Purpose: The purpose of this study was to examine the effect of foot position and lifting an object on muscle activity and foot pressure during sit to stand(STS) in hemiparetic patients. Methods: Fourteen patients participated in this study. Surface electromyography was used to collect muscle activity and foot pressure measurement system was used to analyze foot pressure in hemiparetic side. Three different foot position was assumed(anterior, neutral, posterior) in hemiparetic side. The repeated two-way analysis of variance and multiple comparisons were conducted to determine statistical significance with a significance level of 0.05. Results: The results were as follows. 1) Lower extremity muscle activity was significantly higher(p<0.05) in biceps femoris and tibialis anterior muscle during STS without holding an object. With changing positions of the affected foot, muscle activity was significantly increased (p<0.05) in vastus medialis and lateral gastrocnemius when the foot was positioned in posterior. 2) There was no significant difference(p>0.05) in foot pressure during STS with object holding and foot positioning. Conclusion: Muscle activity showed a significant increase when the foot was positioned in posterior in comparison to the muscle activity when the foot was in neutral or anterior position.

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Effect of Covering the Extremities with Garment on Thermal Consort and Thermoregulation (사지말초부의 피복면적이 쾌적성과 체온조절반응에 미치는 영향)

  • 정운선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.18 no.2
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    • pp.163-169
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    • 1994
  • This study was carried on to investigate the effect of physiological significance of hand and foot on thermoregulation and thermal pleasantness in clothed $\mu$ Oral and skin temperatures after immersing hands and feet in the cold or the warm water at Ta of 25 and $20^{\circ}C$, respectively, were compared with four types of garment worn by two healthy male subjects. Four types of gannent expressed as A, B, C, D, were determined by the exposed areas of extremities : hands only are exposed in A, feet only are exposed in B, both hands and forearms are exposed in C, and both feet and legs are exposed in D. Major findings observed reveals that oral temperatures in D were generally maintained higher than those in A, B, and C. This is probably because the size of exposed areas rather than skin temperatures seem to determine the level of core temperature. Also, obtained result that thermal sensations felt by the subjects in foot are more closely related to local skin temperatures when they are compared to those in hand. From these findings it would be suggested that the significance of hand and foot in temperature regulation appears to be connected more with behavioral than with physiological.

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3-Dimensional Dental Surgery System based on PC using anatomical landmarks (해부학적 계측점을 이용한 PC-기반3차원 치과수술 시스템)

  • 이경상;유선국;김형돈;배현수;김남현
    • Journal of Biomedical Engineering Research
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    • v.20 no.2
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    • pp.139-148
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    • 1999
  • In this paper, we designed the dental surgery system based on PC. This system predict post operated 3-dimensional image, So the patient has no need to take CT after surgery and expose his body to radiological damage. We predict the post operated skull from the patient's CT with pre and post cephalometry X-ray. Our novel procedures, to register X-ray and CT, are based on anatomical landmarks, singular value decomposition. And we display the predicted image 3-dimensionally by surface rendering. We verified this system by dry skull experiment and clinical experiment. When significance level is 0.05, there is on significance.

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A Conceptional Review of Work Satisfaction & Ergonomics (작업만족과 Ergonomics에 관한 개념적 고찰)

  • Kim, Won
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.6 no.8
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    • pp.13-19
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    • 1983
  • In this paper an attempt is tried to answer the following questions : What does ergonomics have to do with work satisfaction\ulcorner Is there more satisfaction when ergonomics have applied in the design of work\ulcorner Is ergonomics important for work satisfaction\ulcorner This paper is started by defining the concept of satisfaction and ergonomics which is still at a comparatively early stage of development, and the effect of this in practice is that the majority of ergonomics assignments involve research. And then there discussions difficult theories of motivation and satisfaction such as Maslow' theory and Horzberg's theory. And in this paper I'll try to formulate the logical consequences of those theories for the relation between ergonomics and satisfaction. Finally I'll conclude with some ideas about the significance of ergonomics satisfaction. The level of satisfaction experienced with one's work is a complete function of the degree to which different values connected with work and with its concomitant results are attained, the opportunities perceived for the attainment of these values, the relative advantages and disadvantages of the work situation compared with that of other people, and personality and cultural determinants. As for ergonomics, the ergonomist's comprehension will need in future to encompass more of the emotional, attitudinal and motivational facts of working people. Ergonomically - designed work will not produce high degrees of satisfaction, but absence of ergonomics in design will be connected with some dissatisfaction. So this paper suggest s that ergonomics has some significance for work satisfaction and that social Psychological efforts to enhance work satisfaction cannot easily succeed without taking into account human-factors principles.

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A comparative analysis of Cartier's and Tiffany&Co.'s strategies for brand story videos on their YouTube brand channels (까르띠에와 티파니의 유튜브 브랜드 채널을 통한 브랜드 스토리 동영상 전략 비교 분석 연구)

  • Hong, Jiyoun
    • The Research Journal of the Costume Culture
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    • v.24 no.4
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    • pp.498-510
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    • 2016
  • As social media are emerging as essential communication channels for corporates in all areas, luxury jewelry brands have implemented enhanced strategies for brand story videos by creating brand channels on YouTube. In this study, a comparative analysis of the videos made available by Cartier and Tiffany&Co. on their YouTube Brand Channels was conducted, with the aim of identifying their strategic characteristics. The research method encompassed, both literature review and empirical investigations. A quantitative analysis was conducted by means of the 'HEART' model, a type of luxury jewelry brand story, and the following common strategic elements were identified. First, in their brand story videos both brands focus primarily on 'theme'. Second, 'relationship' and 'artisanship' are emphasized in addition to 'theme'. Third, the videos incorporate high level aesthetics to stimulate the fantasies and dreams of their audiences. The strategic differences between the brands are as follows. : First, 'artisanship' is given the greatest significance along with 'theme' in Cartier videos, while 'relationship' has prime significance in Tiffany&Co. videos. Second, a difference between a European approach and an American approach towards luxury brand building is evident, with Cartier hosting exhibitions while Tiffany&Co. provides gala videos instead.

Does Village Fund Transfer Address the Issue of Inequality and Poverty? A Lesson from Indonesia

  • ARHAM, Muhammad Amir;HATU, Rauf
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.10
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    • pp.433-442
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    • 2020
  • This study investigates the impact of fiscal transfer, specifically the Village Fund Transfer, on rural income inequality and rural poverty. Studies on fiscal transfer offers contrasting outcomes, some argues that fiscal transfer suppresses wealth disparity, while others argue that it tends to widen disparity. This study employs descriptive analysis in estimating the elasticity of income inequality and poverty rate before and after the Village Fund Transfer. It develops multiple regressions model on panel datasets of 33 provinces in Indonesia before and after the implementation of Village Fund Transfer. This study suggests that the elasticity of income inequality is higher after the implementation of village fund transfer. Rural poverty tends to decline annually, however, the elasticity changes is lower after the implementation of village fund transfer. Furthermore, this study suggests that village fund transfer is insignificant in coping with the issue of income inequality, while education and the level of labor productivity of agricultural sector appears to be the determinant factor in tackling the issue of income inequality in the rural areas. This study further reveals the significance of village fund transfer in suppressing the rural poverty rate. This study also highlights the significance of human resources quality and agricultural sector in reducing poverty rate in rural areas.

The Effects of Compliance and Self Efficacy on Nursing Education Program for Pneumonia Patient (폐렴환자를 위한 간호교육프로그램이 순응도 및 자기효능감에 미치는 효과)

  • Kang, Kyung Sook;Choi, Hanna
    • Journal of Korean Biological Nursing Science
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    • v.22 no.3
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    • pp.184-191
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    • 2020
  • Purpose: The purpose of this study was to validate the effects that the structured pamphlet and education through tablets regarding the daily life management and disease nursing education program has towards pneumonia patients in compliance, and self-efficacy. Methods: This study used the quasi-experimental study design based upon the nonequivalent control group pretest-posttest design. A total of 100 patients-50 patients who were hospitalized February 2020 as the control group and 50 patients who were hospitalized March 2020 as the experimental group - were used as material for the statistical analysis. These data were analyzed with a significance level of p< .05 using the SPSS WIN 21.0 program. Results: The patients' compliance, and self-efficacy had no significance difference between the two previous scores, meaning homogeneity in the two groups. Through verifying the experimental group who had disease and daily-life managing nursing education will have higher scores in compliance (t= 20.95, p< .001), and self-efficacy (t= 17.24, p< .001) than the control group who had not received those education, were statistically significantly different leading to all hypothesis being supported. Conclusion: For improving pneumonia patients' compliance, the methods should be simple, easy to understand, effective in numerous clinical situations, require constant education and reinforcement, and periodic nursing education program.