• Title/Summary/Keyword: power factor control

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A Study on Health Concepts and Health Behavior in Vocational High School Studnts (일 실업 고등학교 학생들의 건강개념과 건강행위에 대한 조사 연구)

  • Sohn, Hyun Ran
    • Journal of the Korean Society of School Health
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    • v.8 no.2
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    • pp.293-303
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    • 1995
  • Health has occupied a position of importance in the human history, whether it be in the East or in the West, and it is a subject in which people have been constantly interested. The concept of health has changed continuously as the society has developed, industrialized and become more structured. The perception of health concept can be an esential factor which is to determine the health behaviors. This study is a descriptive inquiry done to identity high school students' perception of health and what they do as health behaviors. The subject consisted of 503 voctional high school seniors, 129 boys and 374 girls, from a school located in An-san Si, kyong-gi Do. The instruments used for this study were open-ended questionnaires and data were collected by having the students fill out the questionnaires which took 10 minutes, in their first class, April 6, 1995. The collected materials were classified and recorded on the cards according to each question using the terms which students had written. After putting statements which had common meanings together, the representative categories were labelled. The results obtained are as follows. 1. Categorizing and labelling of health concepts What high school students descripted as health concepts were classified as the absence of illness, physical comfort, strong physical strength and physique, not having a deformity, resisting power, self control mental-rest(or psychological comfort), wholesome ideas, self-control, harmony in body and in mind, maintenace of daily life, pleasant life, good friends, peaceful family life and realizing objectives. 2. Categorizing and labelling of health behaviors These were classified as preventive life, good dietary habits and regimen, maintenance of clean body, exercises, preventing obesity, rest, environmental balance or control of environment, limit one's tastes, making use of leisure, peaceful mind, sound thought and regular living habits. The result indicates that the health concepts were positive and included not only absence of illness but also harmony in body and in mind and pleasant life; health behaviors which had high frequency were good dietary habits and regimen, exercises and sound thought. It is hoped that these findings well serve as practical references for teachers when they counsel with, and provide the students with guidance programs which include health care.

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Blueberry, blackberry, and blackcurrant differentially affect plasma lipids and pro-inflammatory markers in diet-induced obesity mice

  • Kim, Bohkyung;Lee, Sang Gil;Park, Young-Ki;Ku, Chai Siah;Pham, Tho X.;Wegner, Casey J.;Yang, Yue;Koo, Sung I.;Chun, Ock K.;Lee, Ji-Young
    • Nutrition Research and Practice
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    • v.10 no.5
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    • pp.494-500
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    • 2016
  • BACKGROUND/OBJECTIVES: Evidence indicates that berry anthocyanins are anti-atherogenic, antioxidant, and anti-inflammatory. However, berries differ vastly in their anthocyanin composition and thus potentially in their biological and metabolic effects. The present study compared hypolipidemic, antioxidant, and anti-inflammatory properties of blueberry (BB), blackberry (BK), and blackcurrant (BC) in a diet-induced obesity (DIO) mouse model. MATERIALS/METHODS: Male C57BL/6J mice were fed a high fat (HF; 35% fat, w/w) control diet or a HF diet supplemented with freeze-dried 5% BB, 6.3% BK or 5.7% BC for 12 weeks (10 mice/group) to achieve the same total anthocyanin content in each diet. Plasma lipids, antioxidant status and pro-inflammatory cytokines were measured. The expression of genes involved in antioxidant defense, inflammation, and lipid metabolism was determined in the liver, epididymal adipose tissue, proximal intestine, and skeletal muscle. Histological analysis was performed to identify crown-like structure (CLS) in epididymal fat pads to determine macrophage infiltration. RESULTS: No differences were noted between the control and any berry-fed groups in plasma levels of liver enzymes, insulin, glucose, ferric reducing antioxidant power, superoxide dismutase, and tumor necrosis factor ${\alpha}$. However, BK significantly lowered plasma triglyceride compared with the HF control and other berries, whereas BC significantly reduced F4/80 mRNA and the number of CLS in the epididymal fat pad, indicative of less macrophage infiltration. CONCLUSIONS: The present study provides evidence that BB, BK and BC with varying anthocyanin composition differentially affect plasma lipids and adipose macrophage infiltration in DIO mice, but with no differences in their antioxidant capacity and anti-inflammatory potential.

Estimation of Attitude Control for Quadruped Walking Robot Using Load Cell (로드셀을 이용한 4족 보행로봇의 자세제어 평가)

  • Eom, Han-Sung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.6
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    • pp.1235-1241
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    • 2012
  • In this paper, each driving motor for leg joints on a robot is controlled by estimating the direction of the legs measuring each joint angle and attitude angle of robot. We used quadruped working robot named TITAN-VIII in order to carry out this experimental study. 4 load cells are installed under the bottom of 4 legs to measure the pressed force on each leg while it's walking. The walking experiments of the robot were performed in 8 different conditions combined with duty factor, the length of a stride, the trajectory height of the foot and walking period of robot. The validity of attitude control for quadruped walking robot is evaluated by comparing the pressed force on a leg and the power consumption of joint driving motor. As a result, it was confirmed that the slip-condition of which the foot leave the ground late at the beginning of new period of the robot during walking process, which means the attitude control of the robot during walking process wasn't perfect only by measuring joint and attitude angle for estimating the direction of the foot.

Predictive Factors on Blood donation Intention and Behavior in College Students: Base on the Theory of Planned Behavior (계획된 행위이론에 근거한 대학생의 헌혈의도 및 헌혈행위 예측요인)

  • Kim, Yu-Jeong;Choi, In-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.6
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    • pp.3789-3798
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    • 2014
  • This study examined the factors affecting blood donation intention and behavior in college students based on the theory of planned behavior. The subjects were 258 students from one college in G city, and the data was collected by a survey using self-administered questionnaires structured from June 3 to June 14, 2013. The data was analyzed using the SPSS 19.0 program, the variables affecting the blood donation intention were analyzed by stepwise multiple regression, and the variables affecting the blood donation behavior were analyzed by Logistic regression. The factors affecting the blood donation intention were in order the perceived behavioral control, attitude toward the behavior and subjective norm, and the explanatory power was 65.6%. In addition, the factor affecting the blood donation behavior was only the blood donation intention (OR=1.129, p=.010) except for perceived behavioral control. Therefore, the perceived behavioral control, attitude and subjective norm should be considered when developing blood donation programs for college students.

A Convergence Study about the Performance of Healthcare-Associated Infection Control Guidelines of Hospital Nurses-based on the Theory of Planned Behavior (병원간호사의 의료관련감염 관리지침 수행에 관한 융합연구-계획된 행위이론(TPB) 기반)

  • Moon, Jeong-Eun;Song, Mi-Ok
    • Journal of the Korea Convergence Society
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    • v.8 no.5
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    • pp.117-125
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    • 2017
  • This is a convergence study to present strategies for performance enhancement by verifying the causal relationship between the influencing factor on the performance of the healthcare-associated infection control guidelines in hospital nurses. Participants were 388 nurses recruited from 16 different tertiary and general hospitals in Korea. Data collection was conducted using self-report questionnaires and analyzed using SPSS 21.0 and AMOS 21.0 programs. The overall fitness was ${\chi}^2=99.64$ (df=14, p<.01), GFI=.94, RMSEA=.10, NFI=.84, CFI=.90. The explanatory power of predictive variables on intention were 23.8%, and those on behavior were 17.7%. As a result of this study, it was found that TPB is an appropriate theory to explain the performance of healthcare-associated infection control guidelines, and repeated studies including multi-level modeling of career experience and organizational influences on behavior with strong social characteristics are needed.

The Improvement Plan of Quality and Organization Management through the Survey of Actual Condition in Construction Work (건설공사 실태분석을 통한 품질 및 조직관리 개선방안)

  • Choi, Byung-Ju;Choi, Seok-Woo;Kim, Ok-Kyue
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2007.11a
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    • pp.213-218
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    • 2007
  • Domestic by opening of world construction market with recent FTA should be achieved systematic action that of exoteric surrounding construction environment to inculcate this because consciousness structure unpreparedness of legation fields about quality is expose for hindrance factor for QI in construction spot by quality and organization management official important thing for building company's QI because conquest is possible through QI of construction to possess government official and international competitiveness of customer satisfaction by offering consumer building of change and good quality rapidly, organization's CEO determination must become side improvement the formation government official enemy, and when inspect by each process, responsible persons participate cooperation enterprise space-time. To improve this because complete charge department for quality control appears that organization management need complete charge department being expose by greatly unprepared misgovernment in heavy hydrogen building company, expense that CEO under direct control histiocyte modeling air with AHP analysis is economical will be cost, but is construed can bring excellent effect in operation management side of quality and organization such as cost-cutting effect in maintenance side and I should do so that can occupy competitive power high position with tissue at active quality complete charge deputy.

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A Convergence Study on the Factor Influencing to Healthcare-Associated Infection Control Guidelines of Nursing Students (간호학생의 의료관련감염 관리지침 준수 영향요인에 관한 융합연구)

  • Song, Mi Ok;Moon, Jeong Eun
    • Journal of the Korea Convergence Society
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    • v.10 no.11
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    • pp.189-198
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    • 2019
  • In this preliminary study exploring the development of an convergent educational program, we identified the factors that affect adherence to healthcare-associated infection (HAI) control guidelines. The data were collected using a self-reported questionnaire of 183 nursing students. The collected data were analyzed using AMOS 21.0 and SPSS 21.0 program. The model fit was ${\chi}^2=52.06$ (df=9, p<.01), GFI=.93, RMSEA=.16, NFI=.85, and CFI=.90, and the explanatory power was 26.2%. As a result in this study, it was found that the theory of planned behavior(TPB) was appropriate for explaining the intention about healthcare-associated infection control guidelines. It is necessary to develop an education program that can reinforce the concepts of TPB, and iterate research to verify its effectiveness.

Convergent Factors Related to TOEIC Learning Flow of Some College Students in Health Care (보건계열 일부 대학생의 토익 학습몰입과 관련된 융복합적 요인)

  • Hong, Soomi;Bae, Sang-Yun
    • Journal of Digital Convergence
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    • v.16 no.11
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    • pp.383-392
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    • 2018
  • This study investigates convergent factors to TOEIC learning flow among some health college students in TOEIC class. The questionnaire was performed on 255 health college students in TOEIC class from college located in J area from May 1st, 2018 to May. 25th, 2018 by using an unregistered self-administered questionnaire. The hierarchical multiple regression analysis shows the following results. The TOEIC learning flow of respondents turned out to be significantly higher in following groups: a group in which self efficacy is higher, a group in which academic control is higher, a group in which school resilience is higher. The results show explanatory power of 43.4%. As the results of the study, it is necessary to make an effort to increase self efficacy, academic control and school resilience to improve the TOEIC learning flow among health college students. These results can be used in development and operation of TOEIC learning program to higher TOEIC learning flow in health college students. Further studies need the analysis of structural equation model effecting TOEIC learning flow of health college students.

Factors influencing Nursing Students' Perceived Attitude toward Professional Responsibility for Child Abuse (간호대학생이 지각하는 아동학대 전문가적 책임에 대한 태도 영향 요인)

  • Jeon, So-Ja;Oh, Jae-Woo;Jeon, Mi-Kyung
    • Journal of Industrial Convergence
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    • v.20 no.3
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    • pp.55-61
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    • 2022
  • This study is a descriptive research study to confirm the effects of nursing students' perceived professional responsibility, attitude toward corporal punishment of children, perceived degree of behavioral control, and attitude toward professional responsibility for child abuse. Data collection was from September 1 to 30, 2021, and the collected data were statistically analyzed using the SPSS 22.0 program. As a result of the study, the influencing factor on nursing students' perceived attitude toward professional responsibility for child abuse was perceived behavioral control, and the influence power of variables was 13.6%. Based on the results of this study, it is thought that an educational program should be developed to build an environment to improve nursing students' perceived behavioral control for child abuse and to improve their attitude toward professional responsibility for child abuse.

Neural Growth Factor Stimulates Proliferation of Spinal Cord Derived-Neural Precursor/Stem Cells

  • Han, Youngmin;Kim, Kyoung-Tae
    • Journal of Korean Neurosurgical Society
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    • v.59 no.5
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    • pp.437-441
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    • 2016
  • Objective : Recently, regenerative therapies have been used in clinical trials (heart, cartilage, skeletal). We don't make use of these treatments to spinal cord injury (SCI) patients yet, but regenerative therapies are rising interest in recent study about SCI. Neural precursor/stem cell (NPSC) proliferation is a significant event in functional recovery of the central nervous system (CNS). However, brain NPSCs and spinal cord NPSCs (SC-NPSCs) have many differences including gene expression and proliferation. The purpose of this study was to investigate the influence of neural growth factor (NGF) on the proliferation of SC-NPSCs. Methods : NPSCs ($2{\times}10^4$) were suspended in $100{\mu}L$ of neurobasal medium containing NGF-7S (Sigma-Aldrich) and cultured in a 96-well plate for 12 days. NPSC proliferation was analyzed five times for either concentration of NGF (0.02 and 2 ng/mL). Sixteen rats after SCI were randomly allocated into two groups. In group 1 (SCI-vehicle group, n=8), animals received 1.0 mL of the saline vehicle solution. In group 2 (SCI-NGF group, n=8), the animals received single doses of NGF (Sigma-Aldrich). A dose of 0.02 ng/mL of NGF or normal saline as a vehicle control was intra-thecally injected daily at 24 hour intervals for 7 days. For Immunohistochemistry analysis, rats were sacrificed after one week and the spinal cords were obtained. Results : The elevation of cell proliferation with 0.02 ng/mL NGF was significant (p<0.05) but was not significant for 2 ng/mL NGF. The optical density was increased in the NGF 0.02 ng/mL group compared to the control group and NGF 2 ng/mL groups. The density of nestin in the SCI-NGF group was significantly increased over the SCI-vehicle group (p<0.05). High power microscopy revealed that the density of nestin in the SCI-NGF group was significantly increased over the SCI-vehicle group. Conclusion : SC-NPSC proliferation is an important pathway in the functional recovery of SCI. NGF enhances SC-NPSC proliferation in vitro and in vivo. NGF may be a useful option for treatment of SCI patients pending further studies to verify the clinical applicability.