• Title/Summary/Keyword: Positive correlation

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A Study of Serum Lipids and the Obesity of Housewives in Mooan, Chonnam (농촌 성인 여성의 비만도와 혈청지질에 관한 연구 -무안군을 중심으로-)

  • 김현아;김현덕;남기선
    • Korean Journal of Community Nutrition
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    • v.2 no.3
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    • pp.319-326
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    • 1997
  • This study was to investigate the level of serum lipids and obesity in housewives in Mooan, and relationships between them. The average age, height and weight were 51.1 years, 154.3cm and 58.3kg respectively. The level of obesity of subjects was higher than that of housewives in other areas investigated in other studies. BMI and RBW underestimated in the obese compared to BIA. The amounts of lean body mass and total body water of subjects above 60 years old were smaller than those of forties and their BMI and RBW were lower than those of forties. However, their body fat percentage was nearly same as that of forties. Serum HDL-cholesterol(HDL-C) of subjects was lower than 55mg/㎗, the lower limit of normal range. Triglyceride of subjects above 60years old was higher than the 95th percentile of those of the same age with reference to Mayo clinic. The serum total cholesterol(TC) showed positive correlation with LDL-cholesterol(LDL-C) and TC/HDL-C(p<0.001). LDL-C showed positive correlation with TC(p<0.001), but negative correlation with HDL-C(p<0.05). HDL-C showed negative correlation with triglyceride(p<0.05). TC/HDL-C showed a positive correlation with triglyceride(p<0.05). HDL-C was the serum lipid which showed the highest correlation with obesity and body composition. It showed a negative correlation with the percentage of body fat(p<0.001), total body fat(p<0.001), BMI(p< 0.05) and RBW(p<0.05). TC/HDL-C showed positive correlation with the percentage of body fat(p<0.01) and total body fat(p<0.05). As the result of above, it is needed to make more researches to find out the proper method to estimate the obesity of subjects and educate subjects in Mooan about nutritional information for obesity.

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Response of the Terrestrial Carbon Exchange to the Climate Variability (기후변동성에 따른 육상 탄소 순환의 반응)

  • Sun, Minah;Cho, Chun-Ho;Kim, Youngmi;Lee, Johan;Boo, Kyoung-On;Byun, Young-Hwa
    • Atmosphere
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    • v.27 no.2
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    • pp.163-175
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    • 2017
  • The global terrestrial ecosystems have shown a large spatial variability in recent decades and represented a carbon sink pattern at mid-to-high latitude in Northern Hemisphere. However, there are many uncertainties in magnitude and spatial distribution of terrestrial carbon fluxes due to the effect of climate factors. So, it needs to accurately understand the spatio-temporal variations on carbon exchange flux with climate. This study focused on the effects of climate factors, .i.e. temperature, precipitation, and solar radiation, to terrestrial biosphere carbon flux. We used the terrestrial carbon flux that is simulated by a CarbonTracker, which performs data assimilation of global atmospheric $CO_2$ mole fraction measurements. We demonstrated significant interactions between Net Ecosystem Production (NEP) and climate factors by using the partial correlation analysis. NEP showed positive correlation with temperature at mid-to-high latitude in Northern Hemisphere but showed negative correlation pattern at $0-30^{\circ}N$. Also, NEP represented mostly negative correlation with precipitation at $60^{\circ}S-30^{\circ}N$. Solar radiation affected NEP positively at all latitudes and percentage of positive correlation at tropical regions was relatively lower than other latitudes. Spring and summer warming had potentially positive effect on NEP in Northern Hemisphere. On the other hand as increasing the temperature in autumn, NEP was largely reduced in most northern terrestrial ecosystems. The NEP variability that depends on climate factors also differently represented with the type of vegetation. Especially in crop regions, land carbon sinks had positive correlation with temperature but showed negative correlation with precipitation.

A Study on the Correlation Analysis of the Present Status of Positive Displacement Pumps Installed in Ships

  • Lee, Sang-Il;Kim, You-Taek
    • Journal of Advanced Marine Engineering and Technology
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    • v.32 no.3
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    • pp.421-429
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    • 2008
  • Various kinds of ship are operated to transport cargo or passengers at sea in the world. Most of the important auxiliary machineries installed in those ships are fluid machineries such as pumps, compressors, and fans. A large percentage of fluid machinery is pumps which are classified turbo and positive displacement pumps. This paper analyzes only positive displacement pumps. This thesis has two aims: (a) to analyze the present status of pumps installed in merchant and training ships and (b) to find the correlation among sea going pump kW, port pump kW, total pump kW, GE kW, ME MCR, number of pumps, ME kgf, pump kgf. Based on ship's type, this paper seeks to find special characteristics as a result of analyzing head, flow rate, and kW. Moreover this paper analyzes and compares number of pumps, pump kW/ME MCR, pump kW/GE kW under the conditions of seagoing and berthing according to ship's type.

A Study on Physique Classification and the Correlation with Blood Pressure, Triglyceride, Hematocrit by Anthropometric Indices in Korean Female College Students (일부 여대생의 신체지수에 따른 체형분류 및 일부 혈액요인과의 상관관계 연구)

  • 이병순
    • Journal of Nutrition and Health
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    • v.26 no.8
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    • pp.942-952
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    • 1993
  • This study was to investigate if Body Mass Index(BMI) is adequate as a method of physique classification of Korean female college students. For this study 571 students were selected to examine physique classification by anthropometric index, and the correlation between the various anthropometric index and risk facters(blood pressure, triglyceride, hematocrit). The following results were obtained by this study. 1) Average age of the subjects is 19.6, height 158.2cm and weight 54.4g. 2) All anthropometric indices and body fat percentage are highly correlated (r>0.713), among them BMI shows high and significant positive correlation with weight(r=0.919) and skinfold thickness(r>0.601), but negative correlation with height(r=-0.086). 3) All anthropometric indices and body fat percentage show significant correlation with blood pressure and triglyceride. Among them BMI shows high and significant positive correlation with blood pressure and triglyceride. 4) FAT% III calculated of BMI shows significant with FAT% I and FAT% II by skinfold thickness, and high correlation with blood pressure and triglyceride. Therefore FAT% III is adequate for calculation method of body fat percentage.

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The Relationship between Intake of Food Unconformable to Each Sasang Constitution and Recognition of Irregular Symptoms of Health Condition (사상 체질별 비적응 식품 섭취도와 건강 자각도와의 상관관계 연구)

  • Bok Hye-Ja;Lee Ui-Joo
    • Journal of the East Asian Society of Dietary Life
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    • v.16 no.2
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    • pp.128-135
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    • 2006
  • This study was conducted to determine the relationship between intake of food unconformable to each Sasang constitution and the recognition of irregular symptoms of health condition. The study subjects, 362 university students nationwide, were classified according to their Sasang constitution. Regarding the correlation between intake of constitutionally unconformable food and health recognition, the Soeum type showed a positive correlation between unconformable food intake and multiple subjective symptoms. According to the detailed food type, the Soyang type showed a positive correlation between chicken intake and the symptoms of eyes and skin, and between pepper intake and multiple subjective symptoms. The Soeum type showed a negative correlation between mackerel intake and the symptoms of mouth and anus. A negative correlation was observed between mung-bean intake and multiple subjective symptoms, and this tendency persisted in the correlations between nonglutinous millet intake and multiple subjective symptoms, between wheat powder intake and multiple subjective symptoms, and not only the symptoms of the respiratory system but also eyes and skin. Positive correlations were found between banana intake and multiple subjective symptoms, and between mile intake and the symptoms of the respiratory system. However, the Taeum type didn't display any significant correlation with any food type.

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The Relationship among the degrees of pain coping strategies, Pain and Depression of patients with Rheumatoid Arthritis (류마티스 관절염 환자의 통증대처, 통증 및 우울정도의 관계)

  • Park, Gyung;Choi, Soon-Hee
    • Journal of muscle and joint health
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    • v.5 no.2
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    • pp.253-264
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    • 1998
  • This study has done for the purpose of investigation among the degrees of pain coping strategies, pain, and depression of patients with rheumatoid arthritis. The subjects of this study were 214 patients diagnosed with rheumatoid arthritis. The data were collected from september 4 to 16, 1995 by questionnaires. The data were analysed by the use of frequency, t-test, Pearson Correlation Coefficients, ANOVA, and Duncan test. The results Were as follows ; 1. The mean score of pain was 213.5(range : 4-390) and that of depression was 21.4 (range : 1-50). The mean score of passive pain coping strategies was 30.2(range : 11-48) and that of active pain coping strategies was 18.6(range : 7-33) 2. The passive pain coping degree showed a positive correlation with the pain degree (r=.475, p=.0001) and the active pain coping degree showed a inversive correlation with that(r= -.296, p=.0001). The passive pain coping degree showed a positive correlation with the depression degree (r=.425, p=.0001) and the active pain coping degree showed a inversive correlation with that(r=-.299, p=.0001). The pain degree showed a positive correlation with the depression degree(r=.374, p=.0001).

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Chemical Properties in the Soils of Reclaimed and Natural Tidelands of Southwest Coastal Area of Korea (II) - Distribution of Phosphorus Fractions - (우리나라 서남해안 간척지 및 간석지 토양의 화학적 특성 (II) - 인의 형태별 함량 분포 -)

  • Cho Jae-Young;Koo Ja-Woong;Son Jae-Gwon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.48 no.2
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    • pp.3-9
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    • 2006
  • The chemical fractions of phosphorus were investigated in the soils of reclaimed and natural tidelands of southwest coastal area of Korea. The content of total-P varied to ranged from 322 to 614 mg/kg dry weight with a mean value of 467 mg/kg. The order of different fractions of phosphorus in reclaimed tideland soils was as follows: 1) inorganic phosphorus: Ca-P > Fe-P > Al-P > reductant soluble Fe-P. 2) organic phosphorus: Inositol-P > nucleic acid-P > phospholipid-P. The content of Al-P showed negative correlation with organic matter content but showed positive correlation with pH. The content of Fe-P showed negative correlation with clay mineral content but showed positive correlation with organic matter content. Reductant soluble Fe-P and Ca-P were no correlation with soil properties. The content of inositol-P showed highly positive correlation with clay mineral, organic matter content, and CEC.

The Correlation between Walter Reed Visual Analogue Scale(WRVAS) and Scoliosis Research Society-22(SRS-22) Questionnaire for Idiopathic Scoliosis (특발성 측만증의 진단에 사용되는 WRVAS와 SRS-22의 상관관계)

  • Jung, Jong-Chul;Park, Min-Chull;Lee, Keun-Heui;Kim, Hyoung-Su;Lee, Su-Kyung;Goo, Bong-Oh
    • Journal of the Korean Society of Physical Medicine
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    • v.4 no.1
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    • pp.31-41
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    • 2009
  • Purpose : Purpose of this study was to determine correlation between Walter Reed Visual Analogue Scale (WRVAS) and Scoliosis Research Society-22(SRS-22) questionnaire for idiopathic scoliosis. Methods : For this study, to assess reliability, 224 middle school female students were applied the WRVAS & SRS-22 questionnaire. Pearson correlation analysis was used to know correlationship between WRVAS and SRS-22 questionnaire. Regression analysis was used to know causation between WRVAS and SRS-22 questionnaire. Results Positive correlation(.248) was found between WRVAS score and SRS-22 score. And SRS-22 was shown positive correlation compared with WRVAS as a result slope of .078 Conclusion : The WRVAS questionnaire is reliable positive correlation with SRS-22 questionnaire. It is valid and may be useful for clinical evaluation of idiopathic scoliosis patients.

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Stress, Depression, Coping Styles and Satisfaction of Clinical Practice in Nursing Students (일 간호대학생의 스트레스, 우울, 대처방법과 임상실습 만족도)

  • Park, Hyun-Joo;Jang, In-Sun
    • The Journal of Korean Academic Society of Nursing Education
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    • v.16 no.1
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    • pp.14-23
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    • 2010
  • Purpose: The purpose of this study was to investigate the relationship among stress, depression, coping styles and satisfaction of clinical practice in nursing students. Method: Two hundred fifty-eight nursing college students in 1 city were selected by convenient sample. A questionnaire measured the level of stress, depression, coping styles and satisfaction of clinical practice. The data were analyzed using descriptive statistics, t-test, ANOVA, and Pearson's correlation coefficient. Result: The mean score of stress was 2.82 (${\pm}.39$), depression was 19.23 (${\pm}7.70$), coping styles was 2.42 (${\pm}.42$), and satisfaction of clinical practice was 2.81 (${\pm}.41$). There were significant differences on four variables according to the satisfaction of a nursing major. Stress had a significant positive correlation with depression, and a negative correlation with problem focused coping and satisfaction of clinical practice. Depression had a significant negative correlation with satisfaction of clinical practice. Emotional focused coping had a significant positive correlation with depression, and problem focused coping had a significant negative correlation with depression. Conclusion: From the studies reviewed, one can expect a positive effect on decreasing stress and depression among nursing students when the nursing educators use counseling and instruction for clinical practice.

Influence of Positive Thinking and Self-esteem on School Adjustment of Freshmen in a Nursing Department (간호학과 신입생의 긍정적 사고, 자기효능감이 학교생활 적응에 미치는 영향)

  • Kim, Su-Ol
    • The Journal of Korean Academic Society of Nursing Education
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    • v.24 no.1
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    • pp.72-79
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    • 2018
  • Purpose: The purpose of this study was to investigate the effects of positive thinking and self-esteem on school adaptation among freshmen in a nursing department. Methods: Data were collected by questionnaires from 172 nursing students in the month of December 2017. The collected data were analyzed using descriptive statistics, an independent t-test, ANOVA, Pearson's correlation coefficient, and stepwise multiple regression. Results: A positive correlation was found for school adaptation with positive thinking and self-esteem. Positive thinking, self-esteem, major satisfaction and interpersonal relationships were all significant predictors of school adaptation. The model explained 43.6% of the variables. Conclusion: The results of this study suggest that positive thinking should be considered when developing strategies to increase school adaptation among freshmen in nursing departments.