• Title/Summary/Keyword: Cohesion Analysis

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Factors Influencing Aquatic Exercise Adherence of Patients with Arthritis (만성관절염 환자의 수중운동 지속에 영향을 미치는 요인)

  • Kang, Hyun-Sook
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.15 no.3
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    • pp.350-359
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    • 2008
  • Purpose: The purpose of this study was to identify change in the exercise behavior and to identify factors influencing long-term adherence to aquatic exercise in patients with arthritis as a follow-up study after five years. Method: Baseline data had been collected using a structured interview 6 months after participants completed the aquatic exercise educational program. This second follow-up data collection included 133 participants from the original baseline study and was done 5 years after the original baseline study. Data was analyzed using SPSS 16 Win program. Results: The stage of change for the participants was as follows: Precontemplation (44.3%), Contemplation (24.1%), Preparation (3.0%), Action (0%) and Maintenance (adherence, 28.6%). The adherers (N=38) had significantly higher scores than non-adherers (N=91) in self-efficacy, outcome expectancy, group coherence and self-evaluation, and significantly lower scores in barriers to exercise. In logistic regression analysis, self-efficacy, group cohesion, barriers to exercise and self-evaluation were associated with exercise adherence (Chi Square=17.14, p=.002). Group cohesion (OR=2.5871, 95% CI=1.094-6.113, p= .030) was the most important factor. Conclusion: Self-efficacy, group cohesion, barriers to exercise and self-evaluation need to be considered in planning exercise programs to improve exercise adherence.

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Experimental Study on Reinforcement Effects of Soil Shear Strength by Nylon Net(Substitute Materials Simulating a Root System) -Analysis using Simple Shear Tester under Soil Suction Control - (Nylon Net(대체근계)의 토질강도보강효과에 대한 실험적 연구 - 토양수분제어하의 단순전단시험에 의한 해석 -)

  • Lee, Chang-Woo;Youn, Ho-Joong;Jeong, Yongho
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.9 no.3
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    • pp.76-81
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    • 2006
  • The reinforcement of soil shear strength by nylon net as substitute materials simulating a fine root system was evaluated by soil strength parameters(apparent cohesion(c) and internal friction angle(tan${\phi}$), using simple shear tester which clearly depicts shear deformation and controls soil suction. And the results of shear test by using bamboo as a substitute materials simulating a main root system and using nylon net as a substitute materials simulating a fine root system were compared. The reinforcement of soil strength by nylon net are expressed by apparent cohesion more than internal friction angle. In addition the increment of apparent cohesion by nylon net reached a peak in suction 60 $cmH_2O$. Different from with bamboo, the possibility of the change on internal friction angle(tan${\phi}$) caused by the soil water condition was shown in shear strain 20% condition. These results show that the mechanism of reinforcement by substitute materials simulating root system may be different in the condition of various soil water content.

Factors Influencing Resilience of Adult Children of Alcoholics among College Students (알코올 중독자 성인 자녀인 대학생의 극복력에 영향을 미치는 요인)

  • Kim, Hee-Kyung;Lee, Mi-Hyoung
    • Journal of Korean Academy of Nursing
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    • v.41 no.5
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    • pp.642-651
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    • 2011
  • Purpose: The purpose of this study was to explore the resilience of adult children of alcoholics (ACOA) who are college students, and examine factors contributing to their resilience. Methods: A total of 459 college students from a university in Incheon, participated in this study. Data were collected between April 6 to 30, 2010 using the Korean version of the Children of Alcoholics Screening Test (CAST-K), CAGE, Social Support, Self-Esteem, Family Adaptability and Cohesion, and Resilience measurements. Data were analyzed using the SPSS/WIN 18.0 program. Results: Overall, ACOA group showed lower scores of resilience, social support, self-esteem and family adaptability and cohesion compared to non-ACOA group. Resilience among the ACOA group showed significant relationships with self-esteem (r=.53, p<.001), social support (r=.43, p<.001), and family adaptability and cohesion (r=.25, p<.013). Multiple regression analysis showed that 45% of the variance for resilience in the ACOA group was accounted for by age, gender, social support, self-esteem, and religion. Conclusion: The results of the study show that self-esteem and social support are important determinants of resilience in ACOA, thus it is recommend that further resilience training programs for ACOA be developed to enhance their social support and self-esteem, and ultimately to increase their resilience.

Neighborhood Environment Associated with Physical Activity among Rural Adults: Applying Zero-Inflated Negative Binominal Regression Modeling (영과잉 음이항 회귀모형을 적용한 농촌지역 성인 신체활동의 지역사회환경 요인 분석)

  • Kim, Bongjeong
    • Journal of Korean Public Health Nursing
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    • v.29 no.3
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    • pp.488-502
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    • 2015
  • Purpose: This study was conducted to determine the neighborhood environmental factors associated with physical activity among adults living in rural communities. Methods: A cross-sectional descriptive survey was conducted with a convenience sample of 201 adults living in three Ri in Y-city, Gyeonggi-do. Data were collected from face-to-face interview by trained interviewers and were analyzed using a zero-inflated negative binominal regression model. Results: Participants reported engaged in moderate or vigorous physical activity was 76.1%; 10.5% of participants reported that they met moderate physical activity recommendations and 14.5% of participants reported that they met vigorous physical activity recommendations. Zero-inflated negative binominal regression analysis showed association of increasing days of physical activity with social cohesion (${\beta}=.130$, p=.005), social network (${\beta}=-.096$, p=.003), and safety for crime (${\beta}=-.151$, p=.036), and no days of physical activity was associated with no attainment of education and marginally associated with increasing BMI. Conclusion: Neighborhood environmental factors including social cohesion, social network, and crime for safety were significantly associated with physical activity of rural adults. Community health nurses should expand an approach for individual behavior change to incorporate rural adults' specific neighborhood environmental factors into physical activity interventions.

A Structural Model for Aquatic Exercise Adherence of Patients with Arthritis (관절염 환자의 수중운동 지속에 관한 구조 모형)

  • Kang, Hyun-Sook
    • Journal of muscle and joint health
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    • v.8 no.1
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    • pp.5-26
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    • 2001
  • Many studies have reported that regular aquatic exercise can lead to improvement of health for patients suffering from arthritis. In spite of these benefits, the adherence rate has shown as few as 26% of patients with arthritis who had completed the aquatic exercise education program. Moreover, when patients with arthritis begin an aquatic exercise, 47% withdraw within the first 6 month. No study has been found that constructs model to explain aquatic exercise adherence of patients with arthritis. The purpose of this study were to identify the factors influencing exercise adherence and to construct and test a structural model to explain aquatic exercise adherence of patients with arthritis. Hypothesized model was constructed on the basis of Bandura's social cognitive theory and literature review. Exogenous latent variables included in this model are group cohesion and barrier, endogenous latent variables are self-efficacy, outcome expectancy and self-evaluation. Empirical data used was collected through individual interviews with the structural questionnaire on 249 patients with arthritis who had completed the 6-week aquatic exercise education program of Korean Rheumatology Health Professionals Academy. The interviews were performed from September 6, 1999 through October 8, 1999. A model tested by the covariance structural analysis with LISREL 8.12a program and by descriptive statistics and correlation with SAS 6.12 program. The results are summarized as follows: First, hypothesized model showed a good fit to the empirical data. In the modified model added one new path showed a much better fit. Second, group cohesion had a direct, indirect positive effects, self-efficacy and self evaluation had a direct positive effects on exercise adherence. Barrier had a direct, indirect negative effects on exercise adherence. Outcome expectancy had a direct negative effect, indirect positive effects through self-evaluation on exercise adherence, but total effects was not significant. Total effect size of the variables were group cohesion, self-efficacy, barrier and self evaluation in order. All variables accounted for 54% of the total variance of exercise adherence in the model. In conclusion, this model confirmed to be proper in explaining of aquatic exercise adherence. Group cohesion, self-efficacy, outcome expectancy, self-evaluation, barrier contributed to the aquatic exercise adherence of patients with arthritis. The results of this study suggested that improvement of group cohesion, self-efficacy and self-evaluation, motivation of outcome expectancy through self-evaluation, and reduction of the barrier should be included in the strategy of nursing intervention for the aquatic exercise adherence of patients with arthritis.

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A Study on the Relationship between Community Cohesion and Community Participation for the Foundation of Community Welfare Planning (지역사회복지계획의 기반조성을 위한 지역사회응집력과 지역사회참여의 관계에 관한 연구)

  • Kang, Dae-Sun;Ryu, Ki-Hyung
    • Korean Journal of Social Welfare
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    • v.59 no.1
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    • pp.27-53
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    • 2007
  • Until now, the strategies for increasing community participation has been focusing on the administrative legal institutionalization, but these have not brought substantive effects. So, the need of strategies utilizing the community culture which was formed by the residents and community has been issued on recently. The purpose of this study is to explore the strategies utilizing the community culture. So, it was identified the socio-demographic variables affected the community cohesion (community social networks, community solidarity, place-attachment), that is called community spirit and culture. And through path analysis, it was analyzed the relationship among residents' socio-demographic background, community cohesion, and community participation. The findings are as follows. : the community cohesion's three elements altogether affected positively to the community participation. When regarding the residents characteristics, the strategies for increasing the participation relating to community solidarity was most relevant. the socio-demographics affecting to community solidarity are gender, age, the beneficiary, religion, job type, household income, the length of residence. the women was low at level of participation. The most important variables affecting the community cohesion are the age, the residence duration. Based on these results, the relevant strategies or approaches for increasing community participation are as follows. : using and sharing of the aged's community knowledge, making the long term living and final settlement of community residents, increasing and creating the income for the low-income residents, increasing of religious organization and its members' responsibility to community, and the purposeful extension and relevancy of women's participation. Ultimately, this study is to contribute to fomulate the residents- cultural asset driven's community welfare planning.

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The Effects of Melodic Percussion Playing Group Program on Team Cohesion and Team Efficacy of Youth Soccer Players (선율타악기 연주중심 집단프로그램이 유소년 축구선수의 팀응집력과 팀효능감에 미치는 효과)

  • Kim, Heejin;Moon, Soyoung
    • The Journal of the Korea Contents Association
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    • v.19 no.9
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    • pp.558-566
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    • 2019
  • The purpose of this study is to fine out whether melodic percussion playing group program affects the team cohesion and team efficacy of youth soccer players. In this study fifty seven middle school soccer players were participated. The participants were assigned to either a melodic percussion playing group or a control group. In order to identify the effectiveness of music program, assessments were conducted using the team cohesion and team efficacy scales before and after the program. The results of comparison analysis through t-test are as follows. First, in the posttest of team cohesion between groups, the experimental group showed a significant difference over the control group. In the pretest and posttest examinations within a experimental group, the group also showed a significant difference. Second, in the posttest of team efficacy between groups, the experimental group showed a significant difference over the control group. In the pretest and posttest examinations within a experimental group, the group also showed a significant difference. These results of this study suggest that melodic percussion playing group program may be an effective intervention tool to improve team cohesion and team efficacy of youth soccer players.

Analysis of Influencing Factors on Strength Characteristics of Cemented Sand (고결모래의 강도특성에 대한 영향요인 분석)

  • Lee, Moon-Joo;Choi, Sung-Kun;Choo, Hyun-Wook;Cho, Yong-Soon;Lee, Woo-Jin
    • Journal of the Korean Geotechnical Society
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    • v.23 no.12
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    • pp.75-82
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    • 2007
  • The effects of sitting pressure(${\sigma_{sit}}'$) during cementation, relative density and particle characteristics on the cohesion intercept due to cementation bonds and the confining stress inducing the breakage of cementation bonds ${p_i}'_{(BP)}$ are investigated from drained shear tests on the cemented sands confined under the isotropic stress up to 400 kPa. It was observed from the experimental results that the cemented sands, with the same density and gypsum content, show similar values of cohesion intercept and ${p_i}'_{(BP)}$, regardless of ${\sigma_{sit}}'$. Although the cohesion intercept and ${p_i}'_{(BP)}$ of cemented sands are observed to increase with increasing relative density and cementation level, the relative density appears to have more significant effect on ${p_i}'_{(BP)}$ than the cohesion intercept does. From analysing the test results of three different sands, it is shown that the smaller the particle size the larger the cohesion intercept and ${p_i}'_{(BP)}$, due to the increased number of contact points between the particles.

A study on the Relationships among Coaching leadership, Directive leadership, Self-efficacy and Cohesion - Focused on the Marine Corps Soldiers - (코칭 및 지시적 리더십, 자기 효능감과 응집력간의 관계에 관한 연구 - 해병대 소대원을 중심으로 -)

  • Heo, Je-Eun;Lim, Gye-Hwan;Son, Heon-il
    • Convergence Security Journal
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    • v.16 no.3_1
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    • pp.69-75
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    • 2016
  • This study a Empirical research to examine the relationships among Coaching leadership, Directive leadership, Self-Efficacy and Cohesion, On the focus of Marine Corps Soldiers. The data was collected from 370 Soldiers located at Pohang, January 18 to 25, 2016. Descriptive statistics, frequency, t-test, ANOVA, scheffe test, and Pearson correlation analysis were performed using SPSS/WIN 22.0 program. In Cohesiveness, there were significants differences in Age, Branch of Service and Rank. As the result of Pearson' correlation, the relationships between leadership style, Self-efficacy and Cohesion were positive significants. The implications of these findings for effective leradership of Platoon Leader and future research on develop leradership program and curriculum were then discussed.

Experimental Study on Cement Cohesion Reduction Effect of Grout Mixer with Vibration Filter (진동필터가 설치된 그라우트 믹서의 시멘트 응집 저감 효과에 대한 실험적 연구)

  • Hwang, Sung-Pil;Jeoung, Jae-Hyeung;Kim, Chang-Yong;Lee, Woo-Je
    • The Journal of Engineering Geology
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    • v.28 no.1
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    • pp.61-67
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    • 2018
  • Grouting is reinforcement or cutoff method which uses the hardening agent which is typically represented by portland cement and injected into the ground or the structure. When mixing the cement in powder form with water, the particles tend to cohere each other. Once they cohered, the particle size tends to become larger while injection efficiency becomes lower. This study, in a bid to reduce the cohesion of cement, the screen was set inside the grout mixer so that the cement particles are separated while vibrating them. To validate the effect of vibration screen, comparison test was conducted by using ordinary portland cement, slag cement and micro cement. Viscosity test, bleeding test and grain-size analysis indicated that the characteristics varied significantly after passing through the vibration filter. It is expected that the vibration filter installed inside the grout mixer will reduce the cement cohesion when mixing with water.