• Title/Summary/Keyword: Factor Effect

Search Result 16,083, Processing Time 0.05 seconds

A Meta-Analysis of the Variables Related to Psychological Crisis in Korean Middle Aged Adults (한국 중년기 성인의 심리적 위기감 관련 변인에 대한 메타분석)

  • Jeon, Hae Ok;Kim, Ahrin;Chae, Myung-Ock
    • Journal of Korean Public Health Nursing
    • /
    • v.32 no.3
    • /
    • pp.451-467
    • /
    • 2018
  • Purpose: The aim of this study was to determine the related factors for psychological crises in Korean middle aged adults. Methods: RISS, KISS, National Assembly Digital Library, CINAHL, and PubMed were searched for relevant articles published until October 3, 2016. Finally, a total of 23 studies were included. Meta-analysis of the studies was conducted using Comprehensive Meta-Analysis 3.0 software to calculate the effect size. Results: The related variables of psychological crisis were categorized into 23 variables and 5 factor groups. The effects size (ES) of the overall defensive variables was -0.28. In the defensive factors, the psychological factor (ES=-0.67), followed by cognitive and behavioral factor (ES=-0.34), physical factor (ES=-0.31), and social relational factor (ES=-0.29) had the greatest effect on psychological crises. The effects size of the overall risk variables was 0.48. In the risk factors, the physical factor (ES=0.61) had the greatest effect on psychological crises, followed by the psychological factor (ES=0.53), and cognitive and behavioral factor (ES=0.10). Conclusion: An intervention program is needed to strengthen the defensive factors and reduce the risk factors for psychological crises of Korean middle aged adults.

Application of Soil Factor on the Aseismic Design (내진 설계시 지반계수의 합리적 적용에 대한 연구)

  • 이인모;임종석
    • Geotechnical Engineering
    • /
    • v.9 no.1
    • /
    • pp.7-20
    • /
    • 1993
  • The first Korean earthquake resistant design code was enacted in 1988. In the code, the soil factor which takes into account both the soil amplification factor and the soil -structare interaction effect is divided into three groups : soil factor, 5 : 1.0, 1.2 and 1.5. In order to assist in choosing the soil factors appropriately in the earthquake resistant design, the local site effects on the based shear force induced by earthquakes are considered in depth for typical soil conditions in Korea. The depth of the alluvial and/or weathered zone is usually not deep and the fresh rock is found at depth shallower than 20 meters, and even at about 10 meters around Seoul. One dimensional wave propagation theory and the elastic half space method are used to obtain the soil -structure interaction effect as well as the soil amplification effect. The kinematic interaction effect due to scattering of waves by pile foundation is also considered. Finally, the soil factor is recommended for each soil condition from loose state to dense, and also from shallow soil depth to deep, so that the designer can choose the factor with-out difficulty.

  • PDF

Vascular Endothelial Growth Factor Inhibits irradiation-induced Apoptosis in Human Umbilical Vein Endothelial Cells (혈관내피세포에서 Vascular Endothelial Growth Factor가 방사선에 의해 유도된 apoptosis에 미치는 영향)

  • Lee Song Jae;Kim Dong-Yun
    • The Journal of Korean Society for Radiation Therapy
    • /
    • v.14 no.1
    • /
    • pp.165-174
    • /
    • 2002
  • Vascular endothelial growth factor (VEGF) has been identified as a peptide growth factor specific for vascular endothelial cells. In this study, we examined the effect of VEGF on radiation induced apoptosis and receptor/second messenger signal transduction pathway for VEGF effect in human umbilical vein endothelial cells (HUVECs). VEGF was found to protect HUVECs against the lethal effects of ionizing radiation by inhibiting the apoptosis induced in these cells by radiation exposure. VEGF (1-30 ng/ml) dose dependently inhibited apoptosis by irradiation. Pre-treatment with Flt-1 and Flk-l/KDR receptor blocked the VEGF-in duced antiapoptotic effect. Phosphatidylinositol 3'-kinase (PI3-kinase) specific inhibitor, Wortman in and LY294002, blocked the VEGF-induced antiapoptotic effect. These data suggest that VEGF may play an important role in survival of HUVECs due to the prevention of apoptotic cell death caused by some stresses such as ionizing radiation.

  • PDF

An Analysis of X-Factor, Triple X-Factor, and the Center of Pressure (COP) according to the Feel of the Golf Driver Swing

  • Kim, Yong-Seok;So, Jae-Moo
    • Korean Journal of Applied Biomechanics
    • /
    • v.26 no.3
    • /
    • pp.265-272
    • /
    • 2016
  • Objective: The aim of this study was to analyze X-factor, triple X-factor, and the center of pressure (COP) according to the feel of golf driver swing. Method: For this research, 9 golfers from the Korea Professional Golfers' Association (age: $30.11{\pm}2.98yrs$, height: $178.00{\pm}8.42cm$, weight: $76.22{\pm}8.42kg$, experience: $10.06{\pm}3.11yrs$) were recruited to participate in the experiment. Twelve Motion Analysis Eagle-4 cameras were installed and an image analysis was conducted by using the NLT (non-linear transformation) method, and 2 units of Kistler type 5233A dynamometer were used to measure ground reaction force. The sampling ratio was set at 1000 Hz. The golfers each took 10 swings by using their own driver, and chose the best and worse feel from among 10 shots. A paired-sample t-test was used to analyze the results. Results: In regard to feel, no change in head speed, X-factor, and the triple X-factor's X-factor stretch, hip rise, and head swivel, was observed (p>.05). Regarding ground reaction force, a difference was observed between the top of the backswing (p<.05) and impact (p<.05) in the vertical force of the left foot. For COP, a difference was also observed between the mid backswing (p<.001), late backswing (p<.001), and top of the backswing (p<.05) for the right foot X-axis and Y-axis mid follow through (p<.01). Conclusion: It can be reasoned that, irrespective of feel, the head speed, X-factor and triple X-factor's X-factor stretch, hip rise and head swivel did not have an effect on drive distance for domestic golfers, and the vertical reaction force of the left foot and left-right movement span's pressure dispersal of the right foot had an increasing effect on drive distance.

A Note on Test for Model Adequacy in Nonlinear Regression

  • Kahng, Myung-Wook
    • Journal of the Korean Data and Information Science Society
    • /
    • v.15 no.3
    • /
    • pp.689-694
    • /
    • 2004
  • We investigate the test for model adequacy in nonlinear regression. We can expect the usual likelihood ratio statistic to be unaffected by any parametric- effect curvature; only the effect of intrinsic curvature needs to be considered. Multiplicative correction factor is derived for the limiting distribution of test statistic, which is a function of the intrinsic curvature arrays.

  • PDF

The effect of vegetation parameter characteristics of the multi-layer vegetation model on wind for numerical simulation of micro-meteorology (미기상 수치모의를 위한 다층식생모델의 식생 팍라메타가 바람에 미치는 영향)

  • 오은주;이화운;정용현
    • Journal of Environmental Science International
    • /
    • v.12 no.6
    • /
    • pp.605-613
    • /
    • 2003
  • In order to make use of the protection effect against wind by the vegetation, it examined whether it should make what vegetation form and arrangement using the 2-dimensional non-hydrostatic model. When the foliage shielding factor increases, it becomes hard to take in protection effect against wind in a residential section. When it makes height of vegetation high, it becomes hard to take in protection effect against wind with height. In the comparison in the case where vegetation high is gradually made low toward wind-stream from a vegetation, and the case of making it low gradually, although former tends to receive the protection effect against wind by the vegetation, attenuation of wind velicity becomes large. In the comparison in the case where foliage shielding factor and distribution of density of leaf are gathered gradually toward wind-stream from a vegetation. It has been understood to evaluate to height the influence that the vegetation multi-layer model by which the heat revenue and expenditure in the direction of the vegetation height is considered is used, and to characterize the vegetation group by the parameter setting.

Analysis of impact factors affecting on the stack effect in high-rise building (고층빌딩 연돌 현상의 영향인자 분석)

  • Oh, Jin-Hwan;Song, Doo-Sam;Yoon, Sung-Min;Nam, Yujin
    • KIEAE Journal
    • /
    • v.16 no.3
    • /
    • pp.95-101
    • /
    • 2016
  • Purpose: Recently, high-rise buildings are popular in korea due to high rate of land usage and cost performance in urban area. However, high-rise building causes several problems such as safety issues, cooling/heating load, stack effect, disaster prevention etc. The stack effect is one of the representative problems. Even though there are many researches on stack effect, there are few studies on design guideline considering local condition. Method: This study focuses on the change of pressure distribution according to the design factors which affects the airflow in high-rise residential buildings by simulation analysis. In this study, city, building floor, stairwell door leakage area, elevator door leakage area and changes of layout were considered ad the design factor. Result: The simulation results indicate that building height and ambient air temperature are significant design factor for stack effect.

Determinants of Stock Prices in Jordanian Banks: An Empirical Study of 2006-2018

  • GHARAIBEH, Omar Khlaif;JARADAT, Mahmoud Ali
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.7
    • /
    • pp.349-356
    • /
    • 2021
  • This study comprehensively investigates whether there is an impact of risk, size, profitability, earnings per share, dividend yield, and book-to-market equity on the stock prices of Jordanian banks listed on the Amman Stock Exchange (ASE) for the period 2006-2018. To mitigate endogeneity concerns and to control for within-bank dynamics, panel data fixed effects estimations are used. This study shows that size (SIZE), profitability (ROA), dividend yield (DY) and book-to-market equity (BE/ME) ratios are statistically significant determinants of stock prices. The risk (RISK) factor measured by volatility of ROA has a positive and significant effect on the stock prices, while earnings per share has minimum influence on the stock prices. The results show that ROA has a significant and positive effect and provides the largest effect among all variables used in this study, while the RISK factor has a positive and significant effect. In contrast, SIZE, DY, and BE/ME have a significant negative effect on stock prices. The paper presented new evidence showing that ROA is a better determinant of stock prices in Jordanian banks, and RISK significantly affects stock prices. The researcher recommends using a factor of profitability represented by ROA which has a significant positive effect on the stock prices in Jordanian banks and applying the ROA variable to other sectors.

A Study on the Effect of the Hand and Sensibility Image on the Preference to Textiles for Slacks (슬랙스용 소재의 태와 감성 이미지가 선호도에 미치는 영향)

  • Kim, Hee-Sook;Na, Mi-Hee;Cho, Shin-Hyun
    • Journal of the Korean Home Economics Association
    • /
    • v.41 no.9
    • /
    • pp.31-41
    • /
    • 2003
  • This research was designed to investigate the effect of hand and sensibility image on the preference to textiles for slacks. 85 subjects majored in fashion design were surveyed and 10 kinds of fabrics used as specimen at each season. Factor analysis, t-test, Pearson correlation, Regression were used for statistical analysis by SPSS Win 11.0. The results of this study were as follows: 1. In Spring ${\cdot}$ Fall season, 5 factors were extracted as hand factor and 3 factors as sensibility factor of textiles for slacks. 2. 5 factors were extracted as hand factor and 3 factors as sensibility in Summer. 3. 6 factors were extracted as hand factor and 3 factors as sensibility in Winter season. 4. There were significant differences according to sex between hand factor and sensibility image in Spring ${\cdot}$ Fall. 5. There were significant correlations between hand factor and sensibility image in Spring ${\cdot}$ Fall, Summer and Winter. 6. Hand and sensibility image effected on the preference to textiles for slacks in Spring ${\cdot}$ Fall, Summer and Winter.

A Study on Advertisement Effects of Mobile Fashion Advertisements -Focused on Ad Types and Categories- (모바일 패션 광고효과에 관한 연구 -광고유형과 품목의 차이를 중심으로-)

  • Lee, Seung-Hee;Jang, Yoon-Kyung
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.30 no.9_10 s.157
    • /
    • pp.1455-1463
    • /
    • 2006
  • The purpose of this study was to examine the advertisement effects of mobile fashion advertisements, specifically focusing on how the mobile fashion advertisement effects work according to advertisement types and categories. Two hundred female college students participated in this study. For data analysis, descriptive statistics, factor analysis, and t-test were used for this study. As the results, first, advertisement attitudes were classed into three factors such as cognitive factor emotional factor, and behavioral factor. Second, regarding the effect of advertisement types, pull advertisement type had higher advertisement attitudes, and higher purchasing intention than push advertisement type. There was not significant in brand attitudes between pull advertisement and push advertisement. Third, for the effects of advertisement categories, clothing advertisement had higher cognitive factor and behavioral factor, and higher purchasing intention than accessory advertisement. There were not significant in emotional factor and brand attitude between clothing and accessory advertisements. Based on these results, M-commerce fashion advertisement marketing strategies would be suggested.