• Title/Summary/Keyword: correlation difference

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Body Image and Quality of Life in Women with Mastectomy (유방절제술 환자의 신체상과 삶의 질의 관계)

  • Park, Geum-Ja;Choi, J.S.
    • Asian Oncology Nursing
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    • v.8 no.2
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    • pp.86-92
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    • 2008
  • Purpose: This study was designed to investigate the body-image and quality of life in breast cancer patients with mastectomy. Methods: Data were obtained by self-reported questionaries from 110 patients undergone mastectomy from August 1 to 31, 2007. And data were analyzed using SPSS/PC WIN 12.0 program and frequency, percentage, mean, minimum, maximum, t-test, ANOVA, Scheffe test, Pearson's Correlation Coefficient were used. The results of the study were as follows; 1) Mean of Body image of the subjects was $52.54{\pm}6.67$ (range of scale; 17 to 85). Mean of quality of life was $118.01{\pm}34.37$ (range of scale; 0 to 10). 2) There was no significant difference with the score of body image by demographic and disease-related characteristics of subjects. 3) There was significant difference with the score of quality of life by the work type and economic status of subjects. 4) Relationship between body image and quality of life showed moderately strong positive correlation (r=0.408, p<0.0001). Conclusion: Mean of body image and of quality of life in mastectomy patients were moderate. Relationship between body image and quality of life showed moderately strong positive correlation. Therefore, for improving the quality of life, it is needed to improve body image in breast cancer patients with mastectomy.

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Varietal Difference of Dry Matter Production and Photosynthetic of Middle and Lower Leaves in Soybean

  • Cho, Jin-Woong;Kim, Choong-Soo;So, Jung D.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.48 no.1
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    • pp.25-30
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    • 2003
  • This research was conducted to compare the dry matter production and the yield productivity among nine soybean cultivars by measuring the photosynthetic ability of the middle and lower leaves at the flowering and the seed development stages. The leaf greenness(SPAD value) were ranged as 32-42 at the flowering stage. Also, They were ranged as 25-40 and 38-51 at the fifth leaf and the seventh leaf, respectively. The photosynthetic ability at the flowering and the seed development stage showed significant differences among soybean cultivars, and the photosynthetic ability at the seed development stage showed higher difference among cultivars than the flowering stage. The variation of the photosynthetic ability at the flowering and the seed development stage also was significant among cultivars. The light saturation point at the flowering stage was about 1500 $\mu$mol $m^{-2}$ $s^{-1}$ PAR, and the seed development stage was about 1000 $\mu$mol $m^{-2}$ $s^{-1}$ PAR. The photosynthesis showed the high negative correlation with the leaf area and the positive correlation with the leaf area ratio. Also, photosynthesis at seed development stage showed positive correlation with grain yields but there was not significant between photosynthesis and yields at flowering stage..

Acoustic Characteristics of the Smoking Patients in the Voice Disorders (흡연환자 음성의 음향학적 특성에 관한 연구)

  • Lee, Myeong-Hee;Lee, Seung-Rho;Moon, Seung-Young;Lim, Sang-Ho;Cho, Young-Joo;Hong, Ki-Hwan
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.19 no.2
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    • pp.123-127
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    • 2008
  • Background and Objectives: Smoking has been identified as one of the main determinants of negative changes on the larynx histology. The purpose of this study is to investigate the voice characteristics and correlation between voice parameters of the smokers with vocal polyp or nodule or both of them. Materials and Method: MPT, $F_0$, jitter, shimmer, NHR of Korean /a/ vowel from 54 smokers and 50 nonsmokers diagnosed as vocal polyp or nodule were analyzed. A Computerized Speech Lab (4400) was for the analysis of each voice sample and statistical analysis was done by one-way ANOVA and Pearson correlation coefficient. Result and Conclusion: It showed that we can find difference between smokers and nonsmokers group in MPT, $F_0$, jitter, shimmer were different except NHR. each group shows difference in correlation coefficient between MPT, $F_0$, jitter, shimmer.

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Comparison of Dietary Self-efficacy, Obesity Stress, and Obesity-related Quality of Life According to BMI and Stages of Change in Vegetable Consumption for Nursing Students (간호대학생의 체질량지수와 채소섭취 행동변화단계별 식이효능감, 비만스트레스, 비만관련 삶의 질 비교)

  • Kim, Myoung Sook
    • The Journal of Korean Academic Society of Nursing Education
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    • v.21 no.1
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    • pp.65-74
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    • 2015
  • Purpose: This study was carried outto compare dietary self-efficacy, obesity stress, and obesity-related quality of life (OQOL) according to BMI and stages of change in vegetable consumption. Methods: A convenience sample of 326 nursing students agreed to complete a questionnaire. Data were collected from October 7 to October 18, 2013. Results: Obesity stress and obesity-related quality of life were significantly different according to BMI. Dietary self-efficacy showed a significant difference between the pre-contemplation/contemplation stage, preparation stage, and action/maintenance stage (F=50.18, p<.001). With obesity stress, there was a significant difference between the PC/C, P, and A/M stages (F=17.63, p<.001). Dietary self-efficacy had a positive correlation with OQOL (r=.11, p<.001) and a negative correlation with obesity stress (r=-.14, p=.012). And obesity stress had a negative correlation with OQOL (r=-.45, p<.001). Conclusion: These findings emphasize that nutritional-intervention programs for changes in behavior during the PC/C and P stages of change in vegetable consumption need to develop strategies to enhance dietary self-efficacy for nursing students.

Comparison of Performance Characteristics in the Chevron Type Plate Heat Exchanger with Performance Correlation (성능 예측 상관식에 따른 쉐브론 형태 판형 열교환기 성능 특성 비교)

  • Bae, Kyung-Jin;An, Sung-Kuk;Cho, Hyun-Uk;Nam, Sang-Chul;Cho, Hong-Hyun
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.23 no.8
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    • pp.535-542
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    • 2011
  • The performance of a plate heat exchanger for using liquid solution in the absorption chiller-heater was analyzed. The model was developed by using the various performance prediction correlations. The performance characteristics of the plate heat exchanger with the mass flow rate ratio was verified by using experimental data. To investigate performance of plate heat exchanger with geometry variables, the chevron angle, corrugated wave length, and corrugation depth were changed. As a result, the capacity of Kim and Martin correlation models was similar with the experimental data, and the capacity difference was less than 2%. Besides, the pressure drop of Marin correlation model showed a similar variation with experimental data, and the difference of pressure drop was less than 1.5 kPa.

Identification and characterization of fish breeding habitats on Lake Kyoga as an approach to sustainable fisheries management

  • Rebecca Walugembe Nambi;Abebe Getahun;Fredrick Jones Muyodi;John Peter Obubu
    • Fisheries and Aquatic Sciences
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    • v.26 no.4
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    • pp.282-293
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    • 2023
  • Nile perch and Nile tilapia are major commercial species in Uganda, and thus require continuous production. However, their production is impacted by anthropogenic activities such as fishing in breeding habitats. The aim of this study was to identify and characterize Nile perch and Nile tilapia fish breeding habitats on Lake Kyoga. Water quality, lake bottom, fish and vegetation type samples were collected from 20 sites in April of 2021 and 2022. Key informant interviews were conducted with experienced fishermen at five fish landing sites. The water quality parameters indicated significant difference within the sites using analysis of variance. Sandy and muddy bottom types were equally spread at 40% each by use of a pie chart. Fish gonads showed no significant difference among the 20 sites. Bivariate correlation analysis of the vegetation types indicated a strong negative correlation with Nile perch while Nile tilapia had a positive correlation. Principal component analysis of the water quality, fish gonads and habitat vegetation components cumulatively contributed 82.5% in characterizing a fish breeding habitat. Four sites for Nile perch and four sites for Nile tilapia were characterized as breeding sites on Lake Kyoga and are recommended for mapping and gazettement as breeding habitats for sustainable fisheries management.

A study on Applicability through Comparison of Weather Data based on Micro-climate with existing Weather Data for Building Performative Design (건물 성능디자인을 위한 미기후 기반 기상데이터의 기존 기상데이터와 비교를 통한 활용 가능성 연구)

  • Kim, Eon-Yong;Jun, Han-Jong
    • KIEAE Journal
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    • v.11 no.6
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    • pp.101-108
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    • 2011
  • The weather data has important role for performative building design. If the data location is close to building site, the result of performative design can be accurate. The data which have used nowadays in Korea are from U.S. Department of Energy (DOE) and Korea Solar Energy Society (KSES) but they cover only several locations in Korea which are 4 in DOE and 11 in KSES and there are opinions which it could be served building design efficiently even if the data are not enough. However the weather data for micro-climate are exist which are Green Building Studio Virtual Weather Station (GBS VWS) and Meteonorm weather data. Each weather data has different generation methods which are TMY2, TRY, MM5, and extrapolation. In this research, the weather date for climate are compared with DOE and KSES to check correlation. The result shows the value of correlation in Dry Bulb Temp. and Dew Point Temp. is around 0.9 so they have high correlation in both but in Wind Speed case the correlation(around 0.2) is not exist. In overall result, the data has correlation with DOE and KSES as the value of correlation 0.648 of GBS VW and 0.656 of Meteonorm. Even if the correlation value is not high enough, the patterns of difference in each weather element are similar in scatter plot.

Correlation between the self-concept of clinical dental hygiene professionals and organizational socialization (일부지역 임상치과위생사의 전문직 자아개념과 조직사회화의 상관관계)

  • Lee, Hye-Kyung
    • Journal of Korean society of Dental Hygiene
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    • v.17 no.2
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    • pp.259-269
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    • 2017
  • Objectives: The purpose of this study was to review the correlation between self-concept and organization of socialization in professional settings among dental hygienists. Methods: Statistical analysis was carried out on the collected data to identify any correlation between frequency and percentages. Cronbach's alpha value and one-way ANOVA were conducted. SPSS 12.0 was used to conduct a correlation analysis on self-concept and socialization in professional settings. Validity of the research tools was also confirmed. Results: There was a correlation between the identity and job satisfaction, with the figures showing great variance. Satisfaction was correlated with the nature of the corporation and job performance. In addition, communication had a negative correlation between job characteristics and identities, job performance, while, organizational commitment and positive correlation showed a statistically significant difference. Conclusions: The study reviewed the impact on organizational socialization. The dental hygienist is believed to be on going research into developing more effective and systematic training programs so that they can be effectively socialized society organizations to improve the professional self-concept.

The Relationship Between Asymmetrical Weight Bearing and Bone Mineral Density in Chronic Hemiplegic Limbs

  • Shin, Hwa-Kyung;Kim, Tae-Ho
    • Physical Therapy Korea
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    • v.16 no.4
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    • pp.31-36
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    • 2009
  • Hemiplegia-induced immobilizatoin and reduction of mechanical loading in chronic stroke limbs are common cause of disuse osteoporosis. The purpose of this study was to investigate the effects of asymmetrical weight bearing on the loss of bone mineral in the individual with chronic stroke. Sixteen hemiplegic patients with strokes were evaluated. The measurements of bone mineral density (BMD) were evaluated with the quantitative ultrasound system on the calcaneus region of the paretic and non-paretic side. Plantar pressure was measured using the Mat-Scan system. The paretic side showed significantly smaller values in the T-score of BMD, and peak value of plantar pressure, which included forefoot, midfoot, and hindfoot, than the non-paretic side (p<.05). Results from the pearson correlation analysis showed statistically significant correlation between the BMD difference and the peak-pressure difference of midfoot pressure (p<.05). This finding indicated that BMD loss depended on decrease of body weight born on the paretic leg.

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ANGULAR CLUSTERING OF FIR-SELECTED GALAXIES IN THE AKARI ALL-SKY SURVEY

  • Pollo, A.;Takeuchi, T.T.;Suzuki, T.L.;Oyabu, S.
    • Publications of The Korean Astronomical Society
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    • v.27 no.4
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    • pp.343-344
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    • 2012
  • We present the first measurement of the angular two-point correlation function for AKARI $90{\mu}m$ point sources, detected outside of the Milky Way plane and selected as candidates for extragalactic sources. This is the first measurement of the large-scale angular clustering of galaxies selected in the far-infrared after IRAS. We find a positive clustering signal in both hemispheres extending up to ~ 40 degrees, without any significant fluctuations at larger scales. The observed correlation function is well fitted by a power law function. However, southern galaxies seem to be more strongly clustered than northern ones and the difference is statistically significant. The reason for this difference - technical or physical - is still to be found.