• 제목/요약/키워드: Two-sample T-test

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중년여성의 특성분노, 분노표현, 심혈관 반응과 우울 (The Relation of Trait anger and Anger Expression to Cardiovascular Responses and Depression in Middle-aged Korean Women)

  • 박영주;백순임;최영희;신현정;문소현;김순용
    • 대한간호학회지
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    • 제35권7호
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    • pp.1371-1378
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    • 2005
  • Purpose: This study was designed to examine the relation of trait anger and anger expression to blood pressure, cholesterol, and depression in middle-aged Korean women. Methods: This descriptive correlational design was conducted using a convenient sample taken from the health center of K University Hospital located in Kyungki province, Korea. The subjects were 252 women aged 40 to 64 years. Spielberger's state trait anger expression inventory - Korean version and Beck's depression inventory were used for measuring trait anger, state anger, anger expression and depression. Data was analyzed by descriptive statistics, t-test, Pearson correlation, two-way ANOVA, and cluster analysis using a pc-SAS program. Results: The anger expression types by cluster analysis were Anger out/in type, Low anger expression type, and Anger control type. The level of cholesterol and depression were significantly higher in women with high anger in and high trait anger. In addition, the level of depression was significantly higher in women with a high anger temperament. Conclusions: Trait anger and anger in might be related to cholesterol and depression in women. However, this study does not reveal the relation between blood pressure and trait anger and anger expression.

목재데크 소재의 차이가 시공성 및 하자발생에 미치는 영향 (How Different Material of Wood Deck Impact Workability and Defect Occurrence)

  • 이혁재
    • 문화기술의 융합
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    • 제6권1호
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    • pp.463-469
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    • 2020
  • 최근 여가시간의 증가와 건강에 대한 의식 변화에 따라 산림생태를 체험하는 트레킹문화가 대세를 이루고 있으며, 걷기 중심의 여가활동의 증가와 함께 목재데크를 활용한 탐방로가 여러곳에서 조성되고 있다. 목재데크가 활용되는 구간은 탐방로 중에서 위험한 지역이나 보존이 필요한 지역에 설치되는 경우가 많은데, 목재는 하자의 발생이 빈번하므로 안전상 문제가 발생할 수 있다. 본, 연구는 목재데크의 소재별 차이점을 시공적인 측면에서 파악하고, 하자 발생원인과의 관계를 파악함으로써, 시공성도 좋으며 시공후의 안전성도 높은 소재와 시공방법을 규명하고자 한다. 그 결과, 목재데크는 종류별, 시공방법별로 시공성과 하자발생에 있어서 차이가 있음을 확인할 수 있었다.

파킨슨병 환자의 음향 모음 공간 파라미터 비교 (A Comparison of Parameters of Acoustic Vowel Space in Patients with Parkinson's Disease)

  • 강영애;윤규철;이학승;성철재
    • 말소리와 음성과학
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    • 제2권4호
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    • pp.185-192
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    • 2010
  • The acoustic vowel space has been used as an acoustic parameter in dysarthric speech. The aim of this work was to examine mathematical formulae for acoustic vowel space and to apply these to Korean speakers with idiopathic Parkinson's disease(IPD). Five acoustic parameters were chosen from earlier works and one new parameter was proposed, the pentagonal vowel space. The six parameters included triangular vowel space (3 area), irregular quadrilateral vowel space (4 area), irregular pentagonal vowel space (5 area), vowel articulatory index (VAI), formant centralization ratio (FCR) and F2i/F1u ratio (F2 ratio). An experimental group of 32 IPD patients(male:female=16:16) and a control group of twenty healthy people (male:female=8:12) participated in the study and repeated vowels (/a-i-u-e-o/) three times. A correlation analysis was performed among the six parameters, 2-way ANOVA was done with gender and groups as independent factors, and an independent sample t-test was conducted between the male and the female group as post hoc comparison. All parameters were highly correlated with each other and only the FCR showed a high negative correlation with the others. The results of ANOVA showed a significant difference in F2 ratio, 3 area, 4 area and 5 area between gender and in 4 area and 5 area between groups. For the male members of the two groups, significant statistical differences were found in all parameters whereas no such differences were found for the female members. These findings indicated that the vowel space of the female group was wider than the vowel space of the male group. These differences may have been caused by gender-specific speech styles rather than by patho-physiological mechanisms. We also claim that the pentagonal vowel space is better than the other vowel spaces at representing the disordered speech in natural speech situations.

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Cephalometrically assessing the validity of superior, middle and inferior tragus points on ala-tragus line while establishing the occlusal plane in edentulous patient

  • Chaturvedi, Saurabh;Thombare, Ram
    • The Journal of Advanced Prosthodontics
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    • 제5권1호
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    • pp.58-66
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    • 2013
  • PURPOSE. The purpose of this study was to decide the most appropriate point on tragus to be used as a reference point at time of marking ala tragus line while establishing occlusal plane. MATERIALS AND METHODS. The data was collected in two groups of subjects: 1) Dentulous 2) Edentulous group having sample size of 30 for each group with equal gender distribution (15 males, 15 females each). Downs analysis was used for base value. Lateral cephalographs were taken for all selected subjects. Three points were marked on tragus as Superior (S), Middle (M), and Inferior (I) and were joined with ala (A) of the nose to form ala-tragus lines. The angle formed by each line (SA plane, MA plane, IA plane) with Frankfort Horizontal (FH) plane was measured by using custom made device and modified protractor in all dentulous and edentulous subjects. Also, in dentulous subjects angle between Frankfort Horizontal plane and natural occlusal plane was measured. The measurements obtained were subjected to the following statistical tests; descriptive analysis, Student's unpaired t-test and Pearson's correlation coefficient. RESULTS. The results demonstrated, the mean angle COO (cant of occlusal plane) as $9.76^{\circ}$, inferior point on tragus had given the mean angular value of IFH [Angle between IA plane (plane formed by joining inferior point-I on tragus and ala of nose- A) and FH plane) as $10.40^{\circ}$ and $10.56^{\circ}$ in dentulous and edentulous subjects respectively which was the closest value to the angle COO and was comparable with the values of angle COO value in Downs analysis. Angulations of ala-tragus line marked from inferior point with occlusal plane in dentulous subject had given the smallest value $2.46^{\circ}$ which showed that this ala-tragus line was nearly parallel to occlusal plane. CONCLUSION. The inferior point marked on tragus is the most appropriate point for marking ala-tragus line.

병원간호사의 간호인성과 고위험 병원체 감염환자 간호의도와의 관계: 간호전문직관의 매개효과 (Mediating Effect of Nursing Professionalism in the Relationship between Nurse's Character and Nursing Intention Caring for High Risk Pathogen Infected Patients in the Tertiary Hospital Nurses)

  • 류정림;채윤정;김신희
    • 동서간호학연구지
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    • 제27권2호
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    • pp.143-152
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    • 2021
  • Purpose: This study aims to explore the mediating effect of the nursing professionalism in the relationship between nurse's character and nursing intention caring for high risk pathogen infected patients in the tertiary hospital nurses. Methods: This study used a crosssectional descriptive design. The participants were 129 nurses from two tertiary hospitals. The questionnaire consisted of tools measuring clinical nursing personality, nursing professionalism and nursing intention caring for high risk pathogen infected patients in the tertiary hospital nurses. The data were analyzed using independent sample t-test, one-way ANOVA, Pearson correlation coefficient, and hierarchical multiple linear regression. Results: There were significant relationships between nurse's character and nursing professionalism (r=.59, p<.001), nurse's character and nursing intention caring for high risk pathogen infected patients (r=.54, p<.001), and nursing professionalism and nursing intention caring for high risk pathogen infected patients (r=.54, p<.001). In the relationship between nurse's character and nursing intention caring for high risk pathogen infected patients, nursing professionalism had a partial mediating effect. Conclusion: This current study suggests that strategies for improving nursing professionalism in nurses should be considered when developing an educational program for enhancing their nursing intention caring for high risk pathogen infected patients.

지역사회 거주 경도인지장애 노인들을 대상으로 시행한 한의치료의 보고: 인지기능을 중심으로 (Results of Korean Medicine Treatment in Community Dwelling Elderly with Mild Cognitive Impairment: Focusing on the Change in Cognitive Ability)

  • 김윤나;배준상;엄윤지;이경석;윤현민;조성훈
    • 동의신경정신과학회지
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    • 제30권3호
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    • pp.185-198
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    • 2019
  • Objectives: The purpose of this study was to identify the effectiveness of Korean medicine treatment in mild cognitive impairment (MCI) among a group of community dwelling elderly. Methods: Two-hundred and twenty-nine elderly living in a community and diagnosed with MCI were recruited. Participants were evaluated with various instruments such as the Korean version of Mini-Mental State Examination for Dementia Screening (MMSE-DS) and the Korean version of Montreal Cognitive Assessment (MoCA-K). Korean medicine treatment consisted of herbal medicine, acupuncture, and pharmacoacupuncture. The change in cognitive ability was assessed by using the MMSE-DS and the MoCA-K. Data were analyzed by SPSS/WIN 22.0 using the paired t-test, and the ANOVA. Results: The MMSE-DS and the MoCA-K score generally increased after six months of Korean medicine treatment and the differences in both instruments were statistically significant. Additionally, some consecutive participants maintained long-term cognitive improvement. When analyzed specifically by herbal medicine group based on syndrome differentiation and pharmacoacupuncture group, most showed improvement in the MMSE-DS and the MoCA-K but not all data were statistically significant. The satisfaction score was mostly high and most participants were willing to re-participate in the program. Conclusions: Korean medicine treatment may contribute to the improvement and prevention of cognitive decline in the elderly. However, further systematic research based on large scale sample data and standardized protocols is needed to uplift the welfare and mental health of the elderly.

치과위생사의 심리적 자원이 주관적 경력성공과 주관적 웰빙에 미치는 영향 (Effect of psychological resources on subjective career success and subjective well-being in dental hygienists)

  • 박수옥;조영식
    • 한국치위생학회지
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    • 제21권3호
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    • pp.255-269
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    • 2021
  • Objectives: Subjective well-being is a representative indicator of quality of life. Work and life are not separated, and work itself is a part of life. The purpose of this study was to confirm the effect of psychological resources such as self-esteem, self-efficacy, GRIT, and resilience on the subjective career success and subjective well-being in dental hygienists. Methods: From November 12, 2020 to December 30, 2020, an online survey was conducted on 650 dental hygienists, and data from 630 were analyzed. For the analysis, independent two-sample t-test and one-way ANOVA were performed, and the confirmatory factor analysis and measurement model, construct validity, construct reliability, convergent validity, and discriminant validity were confirmed. This was verified using a structural equation model. SPSS 18.0 and AMOS 18.0 were used for the statistical analyses; p<0.05 were considered statistically significant. Results: The final model fit was found to be suitable. There was no significant difference in subjective career success with respect to the personal characteristics and career characteristics, except for total career and number of turnovers. There was no significant difference in subjective well-being according to personal characteristics and career characteristics. Psychological resources such as self-esteem, self-efficacy, GRIT, and resilience were significant for subjective career success (p<0.05, R2=0.637). Subjective career success was significant for subjective well-being (p<0.05, R2=0.378). Among the psychological resources, self-esteem had both direct and indirect effects on subjective well-being (p<0.05). Conclusions: Positive psychological resources, rather than external conditions, are an important prerequisite for subjective career success and subjective well-being. Thus, it is proven that work is a part of life.

농촌체험휴양마을 운영관리 평가 및 유형화 - 양평 농촌체험휴양마을을 사례로 - (Operation Management Appraisal and the Classification of Rural Tourism Villages - The Cases of Yang-Pyeong Rural Tourism Villages -)

  • 이동윤;엄서호;손용훈
    • 농촌계획
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    • 제27권2호
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    • pp.23-34
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    • 2021
  • This study aims to understand why the sales volume and the number of visitors are different in each rural tourism village. The study considered that the management and operation of rural tourism villages is one of the major influencing factors. To prove this, the study determined what factors were related to the management and operation of villages and derived detailed items to evaluate them. In the study, the researchers conducted an in-depth interview and a literature review on the management and operation of rural tourism villages in Yangpyeong-gun. They also performed a case study on the Sumi village, one of the successfully managed and operated villages in Yangpyeong-gun, to determine the detailed items. As a result, seven factors were identified. These factors comprise operation entity, governance, shared vision, leadership, efficient role-playing, marketing efforts, and equity in profit distribution. Based on these seven factors, 85 of the evaluation items were developed. The management and operation scores of 85 items were measured and summed for each of the 21 rural tourism villages. First, 21 villages were divided into two groups by the sales figures to derive items to determine the difference in the mean value of the evaluation scores. Second, an independent sample t-test was conducted for each village at YangPyeong-gun. Third, the study divided the 21 villages into four groups using 46 evaluation items. Finally, the study's researchers clarified some challenges to solve and appropriate management and operation plans considering each type of rural tourism village.

Investigation of the range of motion of the shoulder joint in subjects with rotator cuff arthropathy while performing daily activities

  • Karimi, Mohammad Taghi;Khademi, Sahar
    • Clinics in Shoulder and Elbow
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    • 제24권2호
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    • pp.88-92
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    • 2021
  • Background: Patients who have rotator cuff arthropathy experience a limited range of motion (ROM) of the shoulder joint and experience problems in performing their daily activities; however, no evidence is available to suggest the exact ROM of the shoulder joint in this population. Therefore, this study sought to determine the degree of motion of the shoulder joint in three planes during different activities. Methods: Five subjects with rotator cuff injuries participated in this study. The motion of the shoulder joints on both the involved and normal sides was assessed by a motion analysis system while performing forward abduction (task 1), flexion (task 2), and forward flexion (task 3). The OpenSIM software program was used to determine the ROM of the shoulder joints on both sides. The difference between the ranges of motion was determined using a two-sample t-test. Results: The ROMs of the shoulder joint in task 1 were 93.5°±16.5°, 72.1°±2.6°, and 103.9°±25.7° for flexion, abduction, and rotation, respectively, on the normal side and 28°±19.8°, 31°±31.56°, and 48°±33.5° on the involved side (p<0.05). There was no significant difference between the flexion/extension and rotation movements of the shoulder joint when performing task 1. However, the difference between flexion and rotation movements of the shoulder joints for the second task was significant (p>0.05). Conclusions: Those with rotator cuff arthropathy have functional limitations due to muscle weakness and paralysis, especially during the vertical reaching task. However, although these individuals have decreased ROM for transverse reaching tasks, the reduction was not significant.

Trueness of 3D printed partial denture frameworks: build orientations and support structure density parameters

  • Hussein, Mostafa Omran;Hussein, Lamis Ahmed
    • The Journal of Advanced Prosthodontics
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    • 제14권3호
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    • pp.150-161
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    • 2022
  • PURPOSE. The purpose of the study was to assess the influence of build orientations and density of support structures on the trueness of the 3D printed removable partial denture (RPD) frameworks. MATERIALS AND METHODS. A maxillary Kennedy class III and mandibular class I casts were 3D scanned and used to design and produce two 3D virtual models of RPD frameworks. Using digital light processing (DLP) 3D printing, 47 RPD frameworks were fabricated at 3 different build orientations (100, 135 and 150-degree angles) and 2 support structure densities. All frameworks were scanned and 3D compared to the original virtual RPD models by metrology software to check 3D deviations quantitatively and qualitatively. The accuracy data were statistically analyzed using one-way ANOVA for build orientation comparison and independent sample t-test for structure density comparison at (α = .05). Points study analysis targeting RPD components and representative color maps were also studied. RESULTS. The build orientation of 135-degree angle of the maxillary frameworks showed the lowest deviation at the clasp arms of tooth 26 of the 135-degree angle group. The mandibular frameworks with 150-degree angle build orientation showed the least deviation at the rest on tooth 44 and the arm of the I-bar clasp of tooth 45. No significant difference was seen between different support structure densities. CONCLUSION. Build orientation had an influence on the accuracy of the frameworks, especially at a 135-degree angle of maxillary design and 150-degree of mandibular design. The difference in the support's density structure revealed no considerable effect on the accuracy.