• Title/Summary/Keyword: bias effect

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The Relationship between Rejection Sensitivity and Reactive Aggression in University Students: Mediating Effects of Self-Concept Clarity and Hostile Attribution Bias (대학생의 거부민감성과 반응적 공격성 간의 관계: 자기개념 명확성과 적대적 귀인편향의 매개효과)

  • Geonhee Lee ;Minkyu Rhee
    • Korean Journal of Culture and Social Issue
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    • v.29 no.4
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    • pp.477-496
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    • 2023
  • The purpose of this study is to examine the relationship between rejection sensitivity and reactive aggression among college students, as well as to determine the mediating effects of self-concept clarity and hostile attribution bias on the relationship between rejection sensitivity and reactive aggression. A self-report questionnaire was conducted online for the purpose of gathering data from university students aged 18 years and older. A total of 250 participants were included in the analysis. SPSS 27.0 was used for data analysis to check the basic statistics of the variables, frequency analysis, reliability analysis, and correlation analysis. In addition, the model fit was checked using Amos 21.0, and the bootstrapping method verified the significance of the indirect effect. The results of this study are as follows. The results of this study are as follows. First, rejection sensitivity positively affects reactive aggression through self-concept clarity. Second, rejection sensitivity increases the hostile attribution bias, leading to an increase in reactive aggression. Third, rejection sensitivity positively influences reactive aggression in an indirect way by sequentially affecting self-concept clarity and hostile attribution bias. These findings have implications as they identify psychological factors that affect reactive aggression in college students. This suggests the importance of utilizing psychological interventions to address reactive aggression associated with social problems, such as crime, and provides a foundation for both treatment and prevention. Finally, implications for further research and limitations of this study are suggested.

Error Characteristics of Ship Radiated Noise Estimation by Sea Surface Scattering Effect (해면 산란효과에 의한 선박 방사소음 추정치 오차)

  • Park, Kyu-Chil;Park, Jihyun;Seo, Chulwon;Choi, Jae Yong;Lee, Phil-Ho;Yoon, Jong Rak
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.23 no.6
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    • pp.563-573
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    • 2013
  • The ship radiated noise level fluctuates by the interference between direct and reflected paths. The effect of sea surface reflection path on interference depends strongly on sea surface roughness. This paper describes error characteristics of ship acoustic signature estimation by sea surface scattering effect. The coherent reflection coefficient which explains a magnitude of sea surface scattering and its resultant interference acoustic field is analyzed quantitatively as a function of a grazing angle, effective surface height, frequency, source-receiver range and depths of source and receiver. Theoretical interference acoustic field is compared with experimental result for two different sea surfaces and five different frequencies by changing source-receiver range. It is found that both matches well each other and a magnitude of interference acoustic field is decreasing by increasing a grazing angle, effective surface height, frequency, and depths of source and receiver and decreasing source-receiver range. For given experimental conditions, the transmission anomaly which is a bias error of ship acoustic signature estimation, is about a range of 1~3 dB. The bias error of an existing ship radiated noise measurement system is also analyzed considering wind speed, source depth and frequency.

Electroacupuncture for Women with Overactive Bladder: A Systematic Review and Meta-analysis of Randomized Controlled Trials (여성 과민성 방광 전침 치료의 무작위 대조군 연구에 관한 체계적 문헌 고찰)

  • Ha, Su-Jin;Hwang, Deok-Sang;Lee, Jin-Moo;Lee, Chang-Hoon;Jang, Jun-Bock
    • The Journal of Korean Obstetrics and Gynecology
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    • v.33 no.3
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    • pp.1-19
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    • 2020
  • Objectives: The purpose of this study is to assess the efficacy and safety of electroacupuncture for women with overactive bladder (OAB) comparing with sham- acupuncture, and electroacupuncture plus drugs. Methods: We searched 8 databases upto May 26, 2020. Randomised controlled trials (RCTs) were eligible. The risk of bias was assessed by two independent authors using the Cochrane risk of bias tool. Study outcomes were calculated by standardized mean differences (SMD) with 95% confidence intervals (Cls) and mean differences (MD) with 95% Cls. Results: Of 146 screened, 5 RCTs were included. Number of participants per study ranged from 5 to 57. The combined results showed that electroacupuncture (EA) may be more effective than sham acupuncture or enhance solifenacin succinates in improving Overactive Bladder Symptom Score (OABSS) and urination frequency of 24 h. However, more trials with high quality and larger sample sizes will be needed to provide sufficient evidence. Only 5 of 187 OAB patients from the included studies reported mild adverse reactions related to EA, therefore, electroacupuncture is safe for treating OAB. Conclusions: Electroacupuncture might have effect in decreasing urination frequency of 24 h and OABSS. However, the evidences ins in sufficient to show the effect using electroacupuncture alone or additional effect to drugs in treating OAB.

Systematic Review of External Qigong Therapy for Joint Pain (관절 통증에 대한 외기 방사 기공 요법의 체계적 문헌고찰)

  • Lee, Hyeon-Yeop;Hwang, Man-Suk;Heo, In;Shin, Byung-Cheul;Heo, Kwang-Ho;Hwang, Eui-Hyoung
    • Journal of Korean Medicine Rehabilitation
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    • v.24 no.4
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    • pp.187-193
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    • 2014
  • Objectives The aim of this study is to analyze the therapeutic effect of external Qigong therapy for treatment of other people's disease on joint pain. Methods We searched articles from Pubmed, Chinese Academic Journals (CAJ) and Oasis online databases. Searching keywords were 'external qigong', 'external qi gong', 'qi therapy', '外气', '关节' and '기공'. After searching the articles, we performed quality assessment using Cochrane risk of bias (RoB) tool and risk of bias assessment tool for non-randomized study (RoBANS). Results Among the 117 articles were searched, 2 randomized controlled clinical trials (RCTs) and 2 single-group before and after studies were finally selected. All of 4 studies showed that external Qigong therapy has significant effect on joint pain. Conclusions Although external Qigong therapy has therapeutic effect on joint pain, it is not common therapy yet. However, external Qigong therapy requires more interests and studies in the future, because it is faithful therapy for Korean medicine theory.

Effects of Dignity Interventions on Psychosocial and Existential Distress in Terminally ill Patients: A Meta-analysis (존엄중재가 말기 환자의 심리적.실존적 디스트레스에 미친 효과: 메타분석)

  • Oh, Pok Ja;Shin, Sung-Rae
    • Journal of Korean Academy of Nursing
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    • v.44 no.5
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    • pp.471-483
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    • 2014
  • Purpose: This study was done to evaluate the effects of dignity interventions on depression, anxiety and meaning of life in terminally ill patients. Methods: PubMed, Cochrane Library CENTRAL, EMBASE, CINAHL and several Korean databases were searched. The main search strategy combined terms indicating dignity intervention, presence of terminal illness and study design. Methodological quality was assessed using Cochrane's Risk of Bias for randomized studies and Risk of Bias Assessment tool for non randomized studies. Data were analyzed by the RevMan 5.2.11 program of Cochrane Library. Results: Twelve clinical trials met the inclusion criteria with a total of 878 participants. Dignity intervention was conducted for a mean of 2.2 weeks, 2.8 sessions and an average of 48.7 minutes per session. Effect sizes were heterogeneous and subgroup analysis was done. Dignity interventions had a significant effect on depression (ES= -1.05, p<.001, $I^2$=15%) and anxiety (ES= -1.01, p<.001, $I^2$=0). For meaning of life, dignity interventions were effective (ES= -1.64, p=.005) and effect sizes were still heterogeneous. Conclusion: Results support findings that dignity interventions can assist terminal ill patients in reducing emotional distress and improving meaning of life. Further well-designed dignity studies will lead to better understanding of the effects of treatments on spiritual well-being.

Development of a High-Resolution Near-Surface Air Temperature Downscale Model (고해상도 지상 기온 상세화 모델 개발)

  • Lee, Doo-Il;Lee, Sang-Hyun;Jeong, Hyeong-Se;Kim, Yeon-Hee
    • Atmosphere
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    • v.31 no.5
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    • pp.473-488
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    • 2021
  • A new physical/statistical diagnostic downscale model has been developed for use to improve near-surface air temperature forecasts. The model includes a series of physical and statistical correction methods that account for un-resolved topographic and land-use effects as well as statistical bias errors in a low-resolution atmospheric model. Operational temperature forecasts of the Local Data Assimilation and Prediction System (LDAPS) were downscaled at 100 m resolution for three months, which were used to validate the model's physical and statistical correction methods and to compare its performance with the forecasts of the Korea Meteorological Administration Post-processing (KMAP) system. The validation results showed positive impacts of the un-resolved topographic and urban effects (topographic height correction, valley cold air pool effect, mountain internal boundary layer formation effect, urban land-use effect) in complex terrain areas. In addition, the statistical bias correction of the LDAPS model were efficient in reducing forecast errors of the near-surface temperatures. The new high-resolution downscale model showed better agreement against Korean 584 meteorological monitoring stations than the KMAP, supporting the importance of the new physical and statistical correction methods. The new physical/statistical diagnostic downscale model can be a useful tool in improving near-surface temperature forecasts and diagnostics over complex terrain areas.

Information Privacy Concerns and Trust in SNS

  • Kim, Yujin;Lee, Hyung-Seok
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.10
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    • pp.223-233
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    • 2022
  • In this paper, we examined the causes of information privacy concerns, trust and related factors in social network services. On the basis of the 'elaboration likelihood model,' we established factors such as information quality, privacy policy, perceived SNS app popularity and optimism bias affecting information privacy concern of SNS users. In addition, we analyzed the relationship between information privacy concern, trust in SNS members, trust in SNS platform and intention to use. Finally, on the basis of the 'trust transfer theory', we analyzed the relationship between trust in SNS members and trust in SNS platform. The results of the study showed that (1) information quality, privacy policy and optimism bias had the significant effects on information privacy concerns, (2) perceived SNS app popularity didn't affect information privacy concerns, (3) information privacy concerns had the significant effects on trust in SNS platforms (4) in accordance with the trust transfer theory, trust in SNS members had the significant effect on trust in SNS platforms, and (5) trust in SNS members had the significant effect on intention to use, while trust in SNS platform didn't have the significant effect on intention to use. The findings of the study are expected to help to improve the SNS firms' understanding towards customers' information privacy protection behaviors and trust.

A Systematic Review and Meta-Analysis on the Effect of Guibi-tang for Postpartum Depression (산후우울증에서 귀비탕(歸脾湯)의 임상효과에 대한 체계적 문헌 고찰 및 메타분석)

  • Eun-Sol Kang;Young-Tae Ahn;Hyo-Jeong Kim;Ji-Soo Hyun;Jin-Young Kang;Yoon-Jae Lee
    • The Journal of Korean Obstetrics and Gynecology
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    • v.36 no.2
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    • pp.55-68
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    • 2023
  • Objectives: The purpose of this study is to analyze the effectiveness of Guibi-tang that are used for postpartum depression. Methods: We searched on five databases [Korean studies Information Service (KISS), Oriental medicine advanced searching integrated system (OASIS), The Cochrane Library, PubMed, and China national knowledge infrastructure (CNKI)] with keywords for Postpartum depression (English, Korean, and Chinese) and evaluated the risk of bias. Meta-analysis was performed on the selected studies. Results: 8 potentially relevant articles were retrieved for further evaluation. There was evidence that Guibi-tang compared with Western medicine was significantly higher rate in total effect rate (RR 1.20, 95% CI 1.04, 1.39, p=0.01). Also, the combined therapeutic effects of Guibi-tang and Psychological intervention compared with Psychological intervention were statistically significant in total effect rate (RR 1.14, 95% CI 1.05, 1.24, p=0.002). And they showed improvement on scores of HAMD (Hamilton depression scale, HAMD) and SF-36 (36-Item short form health survey, SF-36). Conclusion: Guibi-tang appears to be more effective compared to Western medicine in the treatment of postpartum depression. The combination Guibi-tang and Psychological intervention was more effective than psychological intervention alone treated for postpartum depression. However, since unclear risk of bias, the result of this study should be considered carefully. Further clinical trials should be carried out in order to academical clinical progress regarding treatment of Postpartum Depression.

Factors influencing health-related quality of life for young single-person households: the mediating effect of resilience (청년 1인 가구의 건강 관련 삶의 질 영향요인: 회복탄력성의 매개효과를 중심으로)

  • Soo Jin Lee;Sujin Lee;Xianglan Jin
    • Journal of Korean Biological Nursing Science
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    • v.25 no.3
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    • pp.160-171
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    • 2023
  • Purpose: To identify factors influencing health-related quality of life for young single-person households, this study investigated physical and mental health status, health behavior, depression, resilience, and health-related quality of life. Methods: An online survey was administered to members of young single-person households from March 22 to 30, 2022. The data were analyzed using the chi-square test, independent t-test, one-way analysis of variance, Pearson correlation coefficients, multiple regression, and a simple mediation model applying the PROCESS macro model 4 with 95% bias-corrected bootstrapped confidence intervals. Results: The participants were 229 members of young single-person households. Health-related quality of life showed significant relationships with residence (t = 2.80, p = .006), month (F = 3.70, p = .026), mental health status (F = 20.33, p < . 001), and high-intensity exercise (F = 7.35, p = .001) among general and health-related characteristics. Health-related quality of life had significant correlations with depression (r = -.72, p < .001) and resilience (r = .58, p < .001). Multiple regression analysis showed that depression (β = -.57, p < .001) and resilience (β = .21, p < .001) influenced health-related quality of life. Moreover, resilience had a mediating effect between depression and health-related quality of life (indirect effect = -0.002, 95% bias-corrected bootstrapped confidence interval = -0.003 to -0.001). Conclusion: Members of young single-person households tended to be more vulnerable to emergency situations, such as during the coronavirus disease 2019 pandemic, when lockdowns and quarantines were frequent. To improve health-related quality of life in young single-person households, people with high levels of depression or low levels of resilience need special attention and support to promote mental health.

An Investigation of the Relationship Between Corporate Logo and ESG Evaluation (기업로고와 ESG 평가의 관계에 대한 고찰)

  • Yujin Lee;Daeil Nam
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.19 no.2
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    • pp.125-139
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    • 2024
  • The corporate logo symbolizes the company's value, goals and vision as a visual symbol representing the company. It serves as a communication tool for companies by conveying different messages depending on design and color. As demands for ESG management have recently increased, companies have begun to implicitly demonstrate values such as environmental protection and corporate transparency through logos. Companies use logos as a strategy to visually emphasize the value they pursue and project the desired image as a signal. In this process, stakeholders who see the logo experience cognitive bias. Therefore, this study seeks to find out that ESG value can be indirectly communicated by the design of corporate logos, which can also affect a company's ESG evaluation. In addition, this study will examine the moderate effect that logos expect to encounter a greater bias effect as the companies actively include ESG-related issues in corporate disclosure data. This study conducted an analysis of 617 KOSPI-listed companies using ESG evaluation data from 2020 to 2022. The analysis confirmed the significant relation of the type of logo and ESG disclosure on ESG evaluation but found partially moderate effect of ESG disclosure.

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