• Title/Summary/Keyword: T-test analysis

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Relations between College Life Stress and Life Satisfaction among Nursing Students That Had Non-Contact Online Courses (비대면 온라인 강의를 경험한 간호대학생의 대학생활스트레스와 삶의 만족과의 관계)

  • Kim, Jong-Im
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.5
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    • pp.361-370
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    • 2021
  • The purpose of this study was to identify the factors influencing college life stress and life satisfaction of nursing students. The subjects included nursing students from some select areas. The research was conducted in November and December 2020. The data of a total of 227 nursing students were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlations, and stepwise multiple regression analysis. The findings show that college life stress, economic conditions, and interpersonal relationships had significant effects on life satisfaction of the nursing students with an explanatory power of 27.1%. The study examined life satisfaction based on general characteristics and found variations according to college life satisfaction (F=5.88, p=.003), grades (F=7.07, p=.001), interpersonal relationships (F=8.80, p=.000), and economic conditions (F=10.53, p=.000). There was a statistically significant negative correlation between their college life stress and life satisfaction (r=-.436, p<.001). To summarize, these findings raise a need to provide nursing students with a strategy to address economic issues by reducing their academic stress through an improved educational environment, help them keep positive interpersonal relationships through effective communication, and offer them active information such as counseling so that they can achieve life satisfaction.

A Study on the Perception of Information Search Process(ISP) and the Verification of Effectiveness of Scaffolding Strategy (정보탐색과정(ISP)에 대한 인식조사 및 스캐폴딩 전략의 효과성 검증)

  • Jeong-Hoon, Lim;Byeong-Ki, Lee
    • Journal of the Korean Society for Library and Information Science
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    • v.56 no.4
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    • pp.239-267
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    • 2022
  • In this study, the adolescents' perception of the Information Search Process(ISP); their anxiety and the need for intervention during the process were investigated based on Kuhlthau's ISP model, and the relationship among the factors was analyzed with structural equations. In addition, the effectiveness of scaffolding strategy to the experimental group during the class was verified. The main findings are as follows. First, as a result of exploring the anxiety felt by learners and the need for intervention in the information search process, it was found that the presentation stage had a significant effect on the anxiety, and the collection, presentation, and assessment stages had significant effects on the need for intervention. Second, as a result of controlling each variable to investigate the anxiety felt by learners and necessity of intervention in the information search process, it was confirmed that among the demographic variables, the difference between the first graders and the second ones was significant; and the difference in the metropolitan area was more significant than that in the Gangwon province. Third, as a result of paired t-test and covariance analysis on the control group and the experimental group, it was confirmed that the anxiety and need for intervention of the experimental group were statistically significantly reduced. The significance of this study lies in the point that it presents a practical basis for applying scaffolding strategies appropriate to information search process in the field of education.

Effects of Dynamic Tubing Gait Training on Postural Alignment, Gait, and Quality of Life in Chronic Patients with Parkinson's Disease : Case Study (동적탄력튜빙 보행훈련 프로그램이 만성 파킨슨병 환자의 자세정렬과 보행능력과 삶의 질에 미치는 영향 : 사례연구)

  • Lee, Dong-Ryul
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.8
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    • pp.363-377
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    • 2021
  • The present study investigated the effects of dynamic tubing gait training(I and II) on the postural alignment, gait, and quality of life in chronic patients with Parkinson's disease. This study is based on the case study that recruited a total of 3 patients with chronic Parkinson's disease (Hoehn and Yahr Stage of 1 to 3 each one person). Dynamic tubing gait training (I and II) applied to chronic patients with Parkinson's disease for 25 sessions, 30 minutes a day, 5 days a week, over 5 weeks period. To investigate the effects of this study, evaluating using the postural alignment test, muscle activity tests, gait analysis, and quality of life scale for patient with Parkinson's disease. After the intervention of Dynamic tubing gait training (I and II), Trunk flexion was decreased. Also, during walking from initial contact (IC) to mid stance (Mst), muscle activity of Quadriceps, Hamstring, and Tibialis Anterior (TA) was increased and muscle activity of Gastrocnemius was decreased. The muscle activation of Erector Spinae (ES T12, L3) was increased in the H&Y I and III stages and decreased in the H&Y II stage. Length of gait line, single support line, ant/post position and lateral symmetry of center of pressure (COP) parameters improved. The spatio-temporal gait parameters including of step length, stride length, and velocity was increased, and cadence decreased. Further the quality of life of patients with Parkinson's disease was improved. Based on these findings, Dynamic tubing gait training (I and II) could be applied as a new approach to improve posture, gait, quality of life in chronic patients with Parkinson's disease for more than 5 years, whose drug resistance is halved.

Satisfaction with Neighborhood Environments for Dog Walking and Exercise (반려견 산책 및 운동을 위한 근린환경 인식 및 만족도 연구)

  • Song, Jin-Gyeoung;Lee, Jeong-Yeon;Lee, Hyung-Sook
    • Journal of the Korean Institute of Landscape Architecture
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    • v.50 no.4
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    • pp.53-62
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    • 2022
  • Animal companionship is gaining popularity in Korea, and interest in dog walking is also increasing as a strategy to maintain the physical and mental health of dogs and dog owners. The purpose of this study was to investigate the perception and satisfaction of dog owners with the neighborhood environments for dog walking and to examine the willingness to pay (WTP) for an off-leash dog park. Of a total of 249 online survey respondents, 47.8% said they take a walk at least once a day and mainly walk around nearby neighborhoods or parks. Respondents showed a high attachment to their dogs and recognized that dog walks help increase physical activity and maintain the health of owners and their dogs. The satisfaction with neighborhood environments, such as attractive views and the connection of walking trails, was low, and there was a high demand for off-leash dog parks. The truncated mean WTP was estimated to be 85,618 Korean Won, and the result of regression analysis and t-test revealed that walking frequency and the satisfaction with dog walking facilities were statistically significant in the WTP. In order to encourage dog walking to promote physical activity and health, more attention needs to be devoted to improving neighborhood environments for dog walking.

Effects of Unstable Surface Core Exercise on Functional Movement, Balance and Pain in Sedentary Female Workers with Low Back Pain

  • Shin, Yang-Ho;Lee, Jin-Wook;Byun, Yong-Hyun
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.6
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    • pp.157-165
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    • 2022
  • The purpose of this study was to determine whether unstable surface core exercise is more effective than stable surface core exercise on improving functional movement and balance and reducing pain in sedentary female workers with backpain. Participants were randomly assigned to an unstable surface core exercise(UEG; n=10) or a stable surface core exercise(SEG; n=10) group. They participated in the given exercise for 8 weeks. FMS, Y-Balance and VAS were measured before and after the participation in exercise, which were subjected to a repeated-measures ANOVA. In the case of a significant interaction between time and group, paired sample t-tests were conducted for a post hoc analysis within each subject group. Results indicated that FMS of the UEG had a significant effect on HS (p<.01), ASLR (p<.05) and TS(p<.001), but not for other variables. YBT did not show a significant effect for any variable (AT, PL, PM, TS), although the main effect of time was significant in both subject groups. VAS had a significant effect only in the UEG(p<.001). Our findings indicate that compared to SEG, UEG is more effective for improving functional movement and reducing pain, but not for improving balance, in sedentary female workers with backpain.

Ginsenoside F1 attenuates pirarubicin-induced cardiotoxicity by modulating Nrf2 and AKT/Bcl-2 signaling pathways

  • Yang Zhang;Jiulong Ma;Shan Liu;Chen Chen;Qi Li;Meng Qin;Liqun Ren
    • Journal of Ginseng Research
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    • v.47 no.1
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    • pp.106-116
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    • 2023
  • Background: Pirarubicin (THP) is an anthracycline antibiotic used to treat various malignancies in humans. The clinical usefulness of THP is unfortunately limited by its dose-related cardiotoxicity. Ginsenoside F1 (GF1) is a metabolite formed when the ginsenosides Re and Rg1 are hydrolyzed. However, the protective effects and underlying mechanisms of GF1 on THP-induced cardiotoxicity remain unclear. Methods: We investigated the anti-apoptotic and anti-oxidative stress effects of GF1 on an in vitro model, using H9c2 cells stimulated by THP, plus trigonelline or AKT inhibitor imidazoquinoxaline (IMQ), as well as an in vivo model using THP-induced cardiotoxicity in rats. Using an enzyme-linked immunosorbent test, the levels of malondialdehyde (MDA), brain natriuretic peptide (BNP), creatine kinase (CK-MB), cardiac troponin (c-TnT), lactate dehydrogenase (LDH), superoxide dismutase (SOD) and glutathione (GSH) were determined. Nuclear factor (erythroid-derived2)-like 2 (Nrf2) and the expression of Nrf2 target genes, including heme oxygenase-1 (HO-1), glutathione-S-transferase (Gst), glutamate-cysteine ligase modifier subunit (GCLM), and expression levels of AKT/Bcl-2 signaling pathway proteins were detected using Western blot analysis. Results: THP-induced myocardial histopathological damage, electrocardiogram (ECG) abnormalities, and cardiac dysfunction were reduced in vivo by GF1. GF1 also decreased MDA, BNP, CK-MB, c-TnT, and LDH levels in the serum, while raising SOD and GSH levels. GF1 boosted Nrf2 nuclear translocation and Nrf2 target gene expression, including HO-1, Gst, and GCLM. Furthermore, GF1 regulated apoptosis by activating AKT/Bcl-2 signaling pathways. Employing Nrf2 inhibitor trigonelline and AKT inhibitor IMQ revealed that GF1 lacked antioxidant and anti-apoptotic effects. Conclusion: In conclusion, GF1 was found to alleviate THP-induced cardiotoxicity via modulating Nrf2 and AKT/Bcl-2 signaling pathways, ultimately alleviating myocardial oxidative stress and apoptosis.

The Effect of Emotional Intelligence, Empathy Ability and Calling Consciousness of Nursing Students on Happiness (간호대학생의 감성지능, 공감능력 및 소명의식이 행복에 미치는 영향)

  • Kang, Hye-Seung;Lee, Hyun-Ji;Park, Bo-Ha;Lee, Yeon-Gyeong
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.2
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    • pp.243-252
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    • 2019
  • The purpose of this study was to evaluate the effect of emotional intelligence, empathy ability, and calling consciousness of nursing students on happiness. The survey was conducted 217 nursing students attending in G city from September 3th to September 14th, 2018. Data was collected from self-administered questionnaires about happiness, emotional intelligence, empathy ability and calling consciousness. Data were analyzed by SPSS software version 21 using descriptive statistics (frequency) and analytical statistics (t-test, ANOVA, Pearson's correlation coefficient, linear regression). As a result, Happiness was significantly different by gender, grade, satisfaction in major, collegiate-life satisfaction, personal relationship, health status, perceived economic status. Also happiness showed positive correlation with emotional intelligence, empathy ability, and calling consciousness. Multiple regression analysis revealed that the predictors of happiness were grade, collegiate-life satisfaction, health status, empathy ability, calling consciousness, and emotional intelligence accounting for a total of 49.1% of the variance. Results of this study suggest that it is necessary for nursing students to intervention program aimed at enhance the happiness and it would be effective to focus on strengthening emotional intelligence and empathy ability for them.

The Prediction Method of the Small Strain Shear Modulus for Busan Clay Using CPT and DMT (CPT와 DMT를 이용한 부산점토의 최대전단탄성계수 추정방법에 관한 연구)

  • Hong, Sung-Jin;Yoon, Hyung-Ko;Lee, Jong-Sub;Lee, Woo-Jin
    • Journal of the Korean Geotechnical Society
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    • v.25 no.6
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    • pp.5-16
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    • 2009
  • The is study is to evaluate the small strain shear modulus ($G_{max}$) of Busan clay using in-situ penetration tests. A series of dilatometer tests (DMT) and piezocone penetration tests (CPTu) are performed at Busan newport and Noksan sites, and hybrid oedometer tests are also carried out on the specimens obtained from both sites. The $G_{max}$ is evaluated from the shear wave velocity ($V_s$) measured by the bender elements installed at the boundary of oedometer cell. By analyzing these data, the relationship of $G_{max}$ and state variables, such as confined stress and void ratio, is developed. The analysis of lab and in-situ test results reveals that the ratio of $G_{max}$ to $q_t$ is inversely proportional to the plasticity index while the ratio of $G_{max}$ to $E_D$ has a linear relationship with ($I/I_D$)$(p_a/{\sigma}'_v)^{0.5}$. Two correlations suggested in this study, based on CPT and DMT results, appear to provide reasonable predictions of the small strain shear modulus.

The Effects of Socioscientific Issue (SSI)-Based Instruction on Underachieving 9th-Grade Students: Achievement, Attitudes, and Scientific Participation and Lifelong Learning Competency (과학기술 관련 사회쟁점(SSI) 기반 수업이 중학교 3학년 과학 학습부진 학생의 기초 학업성취도, 과학학습에 대한 태도 및 과학적 참여와 평생학습 역량에 미치는 효과)

  • Jin-Kyong Hur;Nam-Hwa Kang
    • Journal of Science Education
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    • v.47 no.1
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    • pp.11-23
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    • 2023
  • In this study, we examined the effect of socioscientific issue (SSI) based science lessons on underachieving 9th-grade students. A total of seven lessons centered on two SSIs related to the national science curriculum were developed and implemented during the first semester of 2021. Data were collected from 185 9th-grade students in one middle school in a mid-sized city of South Korea. Among them, 37 were identified as achieving far below the standards (underachieving students hereafter). Quantitative data were collected from pre- and post-tests on basic science content and attitudes and competency measures. To supplement quantitative data, lesson observation notes were recorded, and student interviews with a selected number of students were conducted. The analysis of quantitative data was conducted through the Wilcoxon Signed Rank Test and paired t-tests. Qualitative data were analyzed to find reasons for changing attitudes. The findings showed that the SSI-based lessons were more effective on underachieving students than the others in enhancing basic academic achievement, while there was no significant effect on all in attitudes and competency. Lesson observation data showed that underachieving students were more engaged in SSI-based lessons than before. Student interviews demonstrated several reasons why they were engaged, suggesting the aspects of SSI-based lessons that facilitated underachieving students' learning. Further research topics are suggested.

Impact of Inner/External Motive of Children with Underachievement in Basic Learning on Academic Failure Tolerance, Depression and Academic Efficacy (기초학습부진아동의 내·외적동기에 따른 학업적 실패내성, 우울, 학업효능감에 미치는 영향)

  • Park, Soon-Gil;Cho, Jeung-Ryeul
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.6 no.5
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    • pp.135-142
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    • 2016
  • This study aimed to identify the correlation between internal/external motive, academic failure (emotion, behavior, task preference), depression (depressive emotion, behavioral disorder, loss of interest, self-degradation and physiological symptom), and academic efficacy of elementary school students with underachievement basic learning, and discover the influential variables on internal/external motive, targeting 56 elementary school students with underachievement in third and fifth grade of 10 elementary schools in G metropolitan city. The research conducted T-test to figure out the difference between the children with underachievement by year and carried out theregression analysis to identify the predictors of self-determination motives. First, there was a difference between the third and fifth graders in terms of the external motives. Second, the influential variables for external motives of children with underachievement included depressive emotion, loss of interest and physiological symptom. Therefore, as more third graders with underachievement study under the external motives compared to the fifth graders, it is concluded necessary to adopt a program to reduce the variables for depression that influence the external motives.