• Title/Summary/Keyword: Q-Factor

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Birth weight was negatively correlated with plasma ghrelin, insulin resistance, and coenzyme Q10 levels in overweight children

  • Park, Eun-Ju
    • Nutrition Research and Practice
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    • v.4 no.4
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    • pp.311-316
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    • 2010
  • The purpose of this study was to investigate the relationship between birth weight and appetite related hormones, insulin resistance, and antioxidant status in overweight children aged 9-10 years. Thirty-four healthy overweight children (18 boys, 16 girls) were evaluated with respect to anthropometric measurement, lipid profiles, leptin, ghrelin, glucose, insulin, C-peptide, lipid soluble vitamins, and antioxidant enzyme activities. I found that birth weight was negatively correlated with insulin resistance parameters, ghrelin, and coenzyme Q10 levels. There was a significant positive correlation between present BMI and leptin level, while a negative correlation was noted between the BMI and $\alpha$-tocopherol and lycopene levels. When total subjects were classified into three groups by tertiles of birth weight, the lowest tertile of birth weight (LTB) group showed higher levels of fasting glucose, HOMA-IR, and ghrelin level than the highest tertile of birth weight (HTB) groups. On the other hand, HTB group showed an increased oxidative stress (decreased coenzyme Q10 level and catalase activity) compared to the LTB group. In conclusion, plasma ghrelin level might play an important role in accelerated growth in overweight children with LTB. Increased insulin resistance is present in overweight children with LTB, while decreased coenzyme Q10 and catalase activity in overweight children with HTB. These results suggest that birth weight might be an important factor for determination of treatment for obesity related complications in childhood obesity.

A Study on the Type of Role Awareness for Medical Institutions Home Health Care Specialists : A Q-Methodological Approach (의료기관 가정전문간호사의 역할인식)

  • Seo, Yun-Jin;Nam, Mi-Ra;Ahn, Ok-Hee
    • Research in Community and Public Health Nursing
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    • v.16 no.3
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    • pp.320-328
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    • 2005
  • Purpose: This study is to identify the types of role awareness of home health care specialists working at medical institutions, to understand their role awareness correctly by grasping the quality of each type, and to provide useful help in the education of home health care specialists. Method: Q-methodology is used to objectify role awareness of medical institution specialists who may recognize situations differently according to their individual experience and comprehension based on the view of behavior. Q-classification was carried out on 30 home health care specialists working at medical institutions using 30 selected questions. Collected data were examined through factor analysis using QUANL PC program. Results: Three different types of role awareness of home health care specialists working at medical institutions were identified. Type I is 'educational-function-centered', Type II 'patient-centered' and Type III 'professional-service-centered'. Conclusion: Regardless of these types, home health care specialists commonly had a high pride as a specialist and a sense of mission regarding themselves as important persons responsible for patients' health.

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Structural Integrity Evaluation for Crane Bracket of Armored Recovery Vehicle (구난장갑차 크레인 브래킷에 대한 구조건전성 평가)

  • Jung, Jae-Woong;Jung, Un-Hwa;Kim, Cheon-Soo;Yu, Young-Soo;Park, Kyung-Chul;Park, Ki-Chul
    • Journal of the Korea Institute of Military Science and Technology
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    • v.16 no.5
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    • pp.653-658
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    • 2013
  • For towing the new type armored vehicle and maintaining the close support, the armored recovery vehicle(ARV) with winch and crane has been developed. In case of crane, it is mainly used to salvage heavy objects by rotational and vertical motion. Especially, the crane bracket is very important parts due to fixing the ARV's body and rotary joint and preventing the force rotation of crane. Therefore, the crane bracket needs to have an enough strength to endure the high load and it is very important to analyze the stress distribution under loads. In the present work, the experimental and analytical investigation on structural integrity evaluation of crane bracket were carried out. The simulation of three-dimensional finite element method(FEM) was compared with experimental datum. From the numerical results, the FEM simulations corresponded well with th experimental results and the structural safety was confirmed by safety factor.

Relationship between Blood Alcohol Concentrations and Breath Alcohol Concentrations of Healthy Korean Males (혈중 알코올 농도와 호흡기 알코올 농도 상관성: 한국인 남성)

  • Yi, SeungHwan;Nam, BeomWoo;Seo, JeongSeok
    • Journal of Auto-vehicle Safety Association
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    • v.7 no.4
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    • pp.9-15
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    • 2015
  • The relationship between BAC(Blood Alcohol Concentrations) and BrACs(Breath Alcohol Concentrations) and also partition ratio of healthy Korean adult males (96 males) are researched in this paper and its dependency is described according to TBW (total body water), BMI (body mass index), BFM (body fat mass), and PBF (percentage of body fat). Among the above four variables, TBW affects significantly to the partition ratio compared to the other variables. The partition ratio of Korean healthy males showed 1,913 (95 % Confidence Interval (C.I.) from 1,889 to 1,937) for the whole time intervals. However, when Q was averaged after 60 minutes later, its values was 2,011 (95 % C.I. from 1,982 to 2,040). Bland-Altman plots showed the compatibility of measurement methods of multi-gas analyzer, and the biases according to the partition ratios (Q=2,100 and Q=1,913) gave -0.0052 % (95 % CI from -0.0059 to -0.0045%) and -0.0004 % (95 % CI from -0.0011 to +0.0003%), respectively.

Assessment of Deformation Modulus in Gneiss for Road Tunnel (도로터널에서 편마암 구간의 암반변형계수 산정 연구)

  • Kim, Nag-Young;Kim, Sung-Hwan;Chung, Hyung-Sik
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.3 no.1
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    • pp.27-35
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    • 2001
  • Four road tunnels, which consists of biotite gneiss and granite gneiss and shows a similar geological conditions, were selected in this study. Laboratory and field tests, the rock mass rating for the four tunnels were conducted. A regression analysis was performed to find out the correlations of test results. It was proposed an equation of reduction factor which can assess the deformation modulus for biotite gneiss and granite gneiss. It was also found that there was a close correlation between Q and RQD in four tunnels according to the analysis between RMR and Q, RMR and RQD, Q and RQD and laboratory and field tests.

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A Study into Pattern of Smoking Cessation Behavior of Smokers (남성 흡연자의 금연에 대한 주관성 연구)

  • 김애경
    • Journal of Korean Academy of Nursing
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    • v.29 no.4
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    • pp.917-928
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    • 1999
  • The purpose of this study was to explore the subjective opinions related to of smoking cessation behavior of smokers. The research period was from Nov. 1, 1998 to May. 7. 1999. The research method used was Q-methodology. The process of the research was as follows : 1. Collection of concourse The statement of self-reference was derived from face to face interviews with 15 adult smokers Statement were categorized by researcher according to semantics 2. Extraction of Q-sample 30 of the self reference statement from categories of the Q-population were selected. 3. Selection of P-sample 31 of smokers were selected by consideration of diversity in sociodemographic background. 4. Based on a 1 to 9 point scale, the selected university students were made to participate in Q-sorting. 5. Analysis of Q-type was obtained by use of the QUANAL program. The results of this study reavealed as follows : There are three type of smoking cessation behavior of Korean smokers. 1. The first type focused on one's own initiative to smoking cessation. 2. The second type focused on environmental factor related to smoking cessation. 3. The third type was habitual smoker. They adhere to smoke and are not ready to smoking cessation. It is suggested that the results of this study may contribute to the development strategies for the purpose of increasing the incidence of smoking cessation of smokers

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Estimation of Potential Natural Vegetation using the Estimate to Probability Distribution of Vegetation in Bukhansan National Park (식생 분포 확률 추정을 통한 북한산 국립공원의 잠재자연식생 추정)

  • Shin, Jin-Ho;Yeon, Myung-Hun;Yang, Keum-Chul
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.3
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    • pp.41-53
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    • 2013
  • The study for the estimation potential natural vegetation was estimated the occurrence probability distribution using geographic information system(GIS) in Bukhansan National Park. Correlation and factor analysis were analyzed to estimate probability distribution. Coefficients were calculated by logistic regression analysis. Correlation coefficients were significantly at the 0.01 level. Commonality of elevation, annual mean temperature, warmth index and potential evapotranspiration were high value, but topographic index was low value. Communities of over the 0.3 points distribution probability, Quercus mogolica communities were the largest area, 76,940,900 $m^2$, Pinus densiflora communities area was 860,800 $m^2$, Quercus acutissima communities area was 500,100 $m^2$ and Quercus variabilis communities area was 1,000 $m^2$, but Q. aliena, Q. serrata, Carpinus laxiflora and Zelcova serrata communities was not appeared. Therefore, potential national vegetation of Bukhansan national park was likely to be Q. mongolica community, P. densiflora community, Q. acutissima community and Q. variabilis community.

A Study of Subjectivity in the Perception Gender Roles of Women (여대생의 성역할에 관한 주관성 연구)

  • Kwon, Hye-Jin;Chung, Yun-Kang;Kim, Kyung-Hi;Choi, Mi-Hye;Yeoum, Soon-Gyo
    • Women's Health Nursing
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    • v.9 no.1
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    • pp.80-91
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    • 2003
  • Purpose : This study is to define the structural patterns of gender roles of women as perceived by co-eds. Method : Q-methodology was used on 174 statements collected through interviews with women aged between 20 an d 50. 38 Q-samples were selected from 330 Q-population. The Q-samples were administered to 29 co-eds. Result : Analysis of Q-type obtained by QUANAL program revealed three types of subjectivity in the perception of gender roles. Type 1, role is characterized by the tendency to play down the female gender role and think that women's body is an essential factor in forming the female gender role. Type 2, rejects motherhood image obedience and chastity dictated by male chauvinism. Type 3, shows a tendency to believeth at female gender cannot be separated from maternity and that women's basic role is housekeeping. The three types were common in believing in self-development and equal rights through economical in dependence.

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Vegetation Structure of Mountain Ridge in Midongsan, Chungcheongbuk-do

  • You, Ju-Han
    • Korean Journal of Plant Resources
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    • v.21 no.3
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    • pp.216-221
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    • 2008
  • The Purpose of this study was to offer the raw data for drawing up the conservation plan by analysing natural vegetation in Midongsan, Chungcheongbuk-do, Korea. The period of survey was from July to October, 2004 and the size of plot was 100$m^2$. In the results of analyzing the physical environments, the range of altitude was 303${\sim}$550m and soil pH was 5.4${\sim}$6.8. The angle of slope was 3${\sim}$57% and topographical factor was composed of ridgeline. In the results of analyzing a importance percentage, the dominant species in tree layer, Pinus rigida, P. densiflora, Quercus mongolica, Q. variabilis and Q. acutissima, P. rigida, Q. mongolica, Q. acutissima, Platycarya strobilacea and Q. variabilis in subtree layer, Rhododendron mucronulatum, Symplocos chinensis for pilosa, Lindera obtusiloba, L. erythrocarpa, Rhus trichocarpa and Weigela subsessilis in shrub layer. In the results of species diversity index, species diversity (H') was from 1.2401 to 2.5540, maximum species diversity (H'max), from 1.9459 to 2.8904, evenness (J'), from 0.5644 to 0.8836, dominance (D), from 0.1164 to 0.4356.

Analysis on the Secondary Pre-Physical Education Teacher's Recognition for the Learning Athletics Using the Q Methodology (Q방법론을 활용한 중등예비체육교사의 육상운동에 대한 인식 연구)

  • Yu, Young-Seol
    • Journal of the Korea Convergence Society
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    • v.11 no.4
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    • pp.311-321
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    • 2020
  • The purpose of this study was to analyze the recognition of secondary pre-physical education teachers' recognition for the learning athletics using Q methodology. P-sample was composed of 28 pre-secondary P·E teachers. The selected Q samples were arranged in the normal distribution form. The collected data were analyzed by factor analysis through varimax rotation using QUANL PC program. This study found four types of recognition on learning athletics. Type I is defined 'the type of recognition for education value.' Type II is defined 'the type of emphasizing assistant activities.' Type III is defined 'the type of an appeal difficulty to learn athletics skill.' Type IV is defined 'the type of emphasizing the basic movement value.' Based of the results of this study, the implications and direction to future research on athletics activities are suggested.