• Title/Summary/Keyword: sensitivity study

Search Result 9,135, Processing Time 0.038 seconds

A Study on the Development and Measurement of Environmental Sensitivity among Middle School Environmental Class (환경감수성 측정을 위한 검사 도구 개발과 이를 이용한 환경감수성 측정 - 중등학교 환경반을 대상으로 -)

  • Lee, Jae-Boong;Lee, Du-Gon
    • Hwankyungkyoyuk
    • /
    • v.19 no.3
    • /
    • pp.138-149
    • /
    • 2006
  • The purpose of this study was to develop the environmental sensitivity(ES) measurement instrument and to apply for middle school students. The questionnaire was developed to evaluate ES. The developed questionnaire consists of 15 items in 5 categories. Each item of the instrument was developed through the conceptional analysis of the definition of ES. The 5 categories included natural environment, activity at natural environment, artificial environment, environmental pollution, environmental destruction. Data for this study were collected from 397 middle school students including 46 environmental class and 351 non-environmental class students. It was found that the developed instrument to measure ES was valid and reliable. Reliability coefficient, Cronbach $\alpha$ was 0.75. Using the developed instrument of ES, the ES was measured for the students of experimental group to which a inqury-based EE model was applied. The result was that the effect of ES of the students of the experimental group was not statistically significant. Futher research is needed related to the EE model based on the inquiry learning model and measurement of environmental sensitivity.

  • PDF

Stability and Sensitivity Analysis of Stream Water Quality System Model (하천 수질모형 시스템의 안정성 및 민감도 분석)

  • 심순보;한재석
    • Water for future
    • /
    • v.21 no.4
    • /
    • pp.407-414
    • /
    • 1988
  • The purpose of this paper is to study the following ; (1) how the stability and sensitivity of a given stream water quality model can be analyzed theoretically by means of the stability theory and the sensitivity theory, and (2) point out that the results of this study prove that numerical analysis for the given stream water quality model is reliable, and the model is sensitive for the variations of parameters. A stability theory which is described by the infinite Fourier series is used to analyze the numerical scheme of the model. The numerical shheme is used a backward implicit scheme. a sensitivity theory which is described by the first order linear vector equation is used to analyze theoretically the effect of variations of water quality parameters such as BOD loads, flow rate, temperature. The results of sensitivity theory are of general applicability and are presented in a analytical form. The results of this study seems to be satisfactory for the reliability of stream water quality model with respect to the numerical scheme and the variations of the water quality parameters.

  • PDF

Study on Price Sensitivity at University Cafeterias - Focus on Seoul and Chungcheong Area - (대학구내식당에 대한 대학생의 가격민감도에 관한 연구 - 서울권과 충청권을 중심으로 -)

  • Lee, Eun-Yong;Park, Kyu-Eun;Jeon, Yu-Jung
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.26 no.2
    • /
    • pp.117-124
    • /
    • 2016
  • As the number of cafeterias at universities has increased, studies on student perception of price sensitivity at cafeterias have gained increased attention. Therefore, the study investigated the relationship between students and university cafeterias according to price sensitivity measurement (PSM). According to the analysis, the indifference price (IDP) was 3,444.06 Korean Won while the subsequent cumulative distribution percentage was approximately 17.68%. The optimal pricing point (OPP) was 3,233.73 Korean Won and the stress price (IDP-OPP) was 210.33 Korean Won. The point of marginal expensiveness (PME) was 4,602.24 Koean Won and the point of marginal cheapness (PMC) was 2,036.29 Korean Won. Therefore, the range of acceptable prices (RAP) was established as 2,565.95 Korean Won. In addition, the study examined differences between price sensitivity measurement (PSM) for the respondent subgroups. Hence, the results will provide a practical background for development of business plans for university cafeterias.

Influence of Moral Sensitivity and Ethical Values on Biomedical Ethics Awareness of Nursing Students (간호대학생의 도덕적 민감성과 윤리적 가치관이 생명의료윤리 인식에 미치는 영향)

  • Kim, Myoung Sook
    • The Journal of Korean Academic Society of Nursing Education
    • /
    • v.21 no.3
    • /
    • pp.382-392
    • /
    • 2015
  • Purpose: This study was performed to investigate the effects of moral sensitivity and ethical values on biomedical ethics awareness of nursing students. Methods: A descriptive survey design was used for this study. The participants were 324 nursing students from S University located in J city. The data were collected through a questionnaire survey done from September 30 to October 18, 2014. Data were analyzed using a t-test, ANOVA, Scheffe's test, Pearson correlation coefficients, and stepwise multiple regression. Results: The factors influencing nursing students' biomedical ethics awareness were identified as moral sensitivity(${\beta}=.34$), ethical values(${\beta}=.11$), awareness of Korean nurses' declaration of ethics(${\beta}=.15$), religion(${\beta}=.14$), and religious activity(${\beta}=.12$). Five factors explained 10.8% of nursing students' biomedical ethics awareness. Conclusion: The results of this study can be used to develop further educational programs on the moral sensitivity and ethical values for enhancement of nursing students' biomedical ethics awareness.

Influence of Nursing Professionalism and Campus Environment on the Perception of Ethical Sensitivity among Nursing Students (간호대학생의 간호전문직관과 대학의 환경풍토가 윤리적 민감성에 미치는 영향)

  • Kim, Yune-Kyong;Joung, Min-Young
    • The Journal of Korean Academic Society of Nursing Education
    • /
    • v.25 no.1
    • /
    • pp.115-124
    • /
    • 2019
  • Purpose: This study was performed to identify the influence of nursing professionalism and campus environment on the perception of ethical sensitivity among nursing students. Methods: A descriptive survey design was used for this study. The participants were 323 nursing students attending four universities in Busan and Kyungnam. Data collection was conducted from November 25 to December 25, 2017 using a self-report questionnaire. Data were analyzed using a t-test, ANOVA, Scheffe's test, Pearson's correlation coefficients, and stepwise multiple regression. Results: The factors influencing ethical sensitivity of nursing students were identified as professional self-concept (${\beta}=.36$), nursing role (${\beta}=.24$), scholarship (${\beta}=.17$), practicability (${\beta}=.17$), and propriety (${\beta}=-.13$). Five factors explained 40.5% of nursing students' ethical sensitivity. Conclusion: The results of this study can be used to develop further educational programs on nursing professionalism and campus environments for enhancement of nursing students' ethical sensitivity.

Research on the Factors Affecting the Willingness to Pay for Digital Music

  • Zhou, Yan
    • Journal of the Korea Society of Computer and Information
    • /
    • v.24 no.6
    • /
    • pp.81-88
    • /
    • 2019
  • Based on the theory of planned behavior and the theory of legal deterrence, this study takes consumers' willingness to pay for digital music as the research object, investigates the consumers who have digital music consumption channels and behaviors, and discusses the willingness of consumers to pay for digital music and its influencing factors. The study attempts to achieve the following research purposes: First, explore the influencing factors of willingness to pay for digital music using domestic and foreign literature research and related content analysis. Second, we want to examine the effect of Attitude, Collective Specifications, Quality Sensitivity and Music affinity on willingness to pay. Third, Legal deterrence and resource availability tries to verify whether there is a moderating effect between Attitude, Collective Specifications, Quality Sensitivity and Music affinity and willingness to pay. The research data was collected in 2019 between April 6th to May 8th. Questionnaires were randomly distributed in fixed places, mainly in Hubei Province, China. A total of 393 questionnaires were selected for data analysis. Based on the previous theoretical review and empirical analysis, the study draws the following conclusions: Firstly, attitude, collective specifications, quality sensitivity and music affinity have an impact on the willingness to pay. Second, Legal deterrence has a regulatory effect on the relationship among quality sensitivity, musical affinity and the willingness to pay. Last the resource availability has a significant impact on the willingness to pay. It also has a regulatory effect on the relationship among quality sensitivity, music affinity and the willingness to pay.

The Influences of Parental Psychological Control on Displaced Aggression -Mediating Effects of Internalized Shame and Rejection Sensitivity- (대학생이 지각한 부모의 심리적 통제가 전위공격성에 미치는 영향 : 내면화된 수치심과 거부민감성의 매개효과)

  • Keum, Da Jeong;Chung, Eun Jung
    • The Journal of the Korea Contents Association
    • /
    • v.20 no.6
    • /
    • pp.609-622
    • /
    • 2020
  • The purpose of this study is to examine the mediating effect of internalized shame and rejection sensitivity between parental psychological control, and displaced aggression in college students. For this purpose, 406 data samples were collected from the college students. SPSS was used for the analysis of descriptive statistics, reliability, correlation, AMOS for the evaluation of structural equation model and the mediating effect, and Mplus for the double mediating effect. Following is the summarization of the study. First, the displaced aggression has a positive relation with parental psychological control, internalized shame, and rejection sensitivity. Also, there were positive relations between internalized shame and parental psychological control, parental psychological control and rejection sensitivity, and internalized shame and rejection sensitivity. Second, internalized shame has a full mediation effect between parental psychological control and displaced aggression. Third, rejection sensitivity has not a mediation effect between parental psychological control and displaced aggression. Fourth, internalized shame and rejection sensitivity were identified as double mediation variables between parental psychological control and displaced aggression. This result inspires the college student's displaced aggression and can be useful in college student's counseling settings. Meanings, limitations and suggest for future research were discussed.

Perceptual Quality-based Video Coding with Foveated Contrast Sensitivity (Foveated Contrast Sensitivity를 이용한 인지품질 기반 비디오 코딩)

  • Ryu, Jiwoo;Sim, Donggyu
    • Journal of Broadcast Engineering
    • /
    • v.19 no.4
    • /
    • pp.468-477
    • /
    • 2014
  • This paper proposes a novel perceptual quality-based (PQ-based) video coding method with foveated contrast sensitivity (FCS). Conventional methods on PQ-based video coding with FCS achieve minimum loss on perceptual quality of compressed video by exploiting the property of human visual system (HVS), that is, its sensitivity differs by the spatial frequency of visual stimuli. On the other hand, PQ-based video coding with foveated masking (FM) exploits the difference of the sensitivity of the HVS between the central vision and the peripheral vision. In this study, a novel FCS model is proposed which considers both the conventional DCT-based JND model and the FM model. Psychological study is conducted to construct the proposed FCS model, and the proposed model is applied to PQ-based video coding algorithm implemented on HM10.0 reference software. Experimental results show that the proposed method decreases bitrate by the average of 10% without loss on the perceptual quality.

An Analysis of Variables Affecting Teacher Sensitivity of Infant Classes in Childcare Centers: Focus on Emotional Stability, Interpersonal Relationship Stress and Work Environment Variables (영아반 보육교사의 교사민감성에 영향을 미치는 변인 분석: 정서안정성, 대인관계 스트레스, 근무환경을 중심으로)

  • Jeong, Yujeong;Kim, Jinwook
    • Korean Journal of Child Studies
    • /
    • v.38 no.2
    • /
    • pp.205-218
    • /
    • 2017
  • Objective: This study examined the correlation between variables influencing teacher sensitivity to infant classes in Educare Center teachers and teacher sensitivity, by classifying their personal psychological, socio-psychological, and work environment variables. Furthermore, it aimed to inquire the extent to which these variables influence teacher sensitivity. Methods: The study included 236 Educare Center teachers in charge of infant classes working in infant-caring facilities. Based on stepwise multiple regression analysis, a significance test was conducted for each variable. Results: Firstly, according to the correlations regarding teacher sensitivity to infant classes, for sensitive interaction, emotional stability showed significant positive correlation, while there were significant negative correlations with relationships with the director, colleagues,and parents; mean working hours in other places; and mean daily personal time. For insensitive interaction, there were significant negative correlations with emotional stability and mean daily break time, while there were significant positive correlations with relationships with the director, colleagues, and parents. Secondly, regarding the influences on teacher sensitivity to infant classes, for sensitive interaction, the most significant influences consisted in the relationships with colleagues and parents. On the other hand, for insensitive interaction, the most significant influences were the relationship with colleagues and emotional stability. Conclusion: Reducing interpersonal relationship stress and increasing the emotional stability of Educare Center teachers will increase their sensitivity level. Furthermore, the quality of care will be improved.

A study on the annoyance and disturbance of floor impact noise according to noise sensitivity based on questionnaire survey (설문조사를 통한 소음 민감도에 따른 층간소음에 의한 성가심과 생활방해 연구)

  • Jeong, Jeongho;Lee, Sungchan
    • The Journal of the Acoustical Society of Korea
    • /
    • v.37 no.6
    • /
    • pp.428-436
    • /
    • 2018
  • The response to noise may differ depending on the respondent's noise sensitivity. In this study, it was investigated that the noise sensitivity, the annoyance and disturbance of floor impact noise and opinions on their neighbors. The questionnaire respondents were divided into two or three groups based on noise sensitivity, and annoyance and disturbance on floor impact sound were compared. The noise sensitivity questionnaire method was presented. The questionnaire survey was conducted on 233 residents of Seoul, Gyeonggi - do area. As a result of the questionnaire survey, when the sensitivity group was divided into three groups, it was found that there was a significant difference between the groups with the noise sensitivity and the disturbance reaction. As a result of the opinions on their neighbors, positive responses to neighbors increased with age. Also, it was found that there was a low perception of inter - floor noise and life disturbance of the group having positive feelings about neighbors.