• Title/Summary/Keyword: Variance of Analysis

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Degree of Dry Mouth and Factors Influencing Oral Health-related Quality of Life for Community-Dwelling Elders (지역사회 노인의 구강건조증 정도 및 구강건강관련 삶의 질 영향요인)

  • Park, Myung-Sook;Ryu, Se-Ang
    • Journal of Korean Academy of Nursing
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    • v.40 no.5
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    • pp.747-755
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    • 2010
  • Purpose: This study was conducted to investigate the degree of dry mouth and oral health-related quality of life and to identify factors contributing to oral health-related quality of life for community-dwelling elders. Methods: A descriptive correlational study design was used. Participants were 156 older adults from two senior welfare centers. Data were collected on February 21, 22 and 29, 30, 2009 using structured questionnaires. Enter type multiple regression analysis was used to identify factors influencing oral health-related quality of life according to general and oral health characteristics. Results: There were significant differences in oral health-related quality of life according to living arrangement, insurance, smoking, number of natural teeth, and denture type. The oral health-related quality of life had significant correlations with the number of chronic disease, number of medications, and dry mouth. Factors influencing oral health-related quality of life for community-dwelling older adults were dry mouth, number of chronic disease, and medical aid, which explained about 47.9% of total variance. Conclusion: These results indicate that in order to promote oral health-related quality of life for older adults, prevention or management of chronic diseases as well as oral health and dry mouth are needed for this population, and especially economically poor elders.

Simultaneous degradation of nitrogenous heterocyclic compounds by catalytic wet-peroxidation process using box-behnken design

  • Gosu, Vijayalakshmi;Arora, Shivali;Subbaramaiah, Verraboina
    • Environmental Engineering Research
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    • v.25 no.4
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    • pp.488-497
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    • 2020
  • The present study investigates the feasibility of nitrogenous heterocyclic compounds (NHCs) (Pyridine-Quinoline) degradation by catalytic wet peroxidation (CWPO) in the presence of nanoscale zerovalent iron supported on granular activated carbon (nFe0/GAC) using statistical optimization technique. Response surface methodology (RSM) in combination with Box-Behnken design (BBD) was used to optimize the process parameters of CWPO process such as initial pH, catalyst dose, hydrogen peroxide dose, initial concentration of pyridine (Py) and quinolone (Qn) were chosen as the main variables, and total organic carbon (TOC) removal and total Fe leaching were selected as the investigated response. The optimization of process parameters by desirability function showed the ~85% of TOC removal with process condition of initial solution pH 3.5, catalyst dose of 0.55 g/L, hydrogen peroxide concentration of 0.34 mmol, initial concentration of Py 200 mg/L and initial concentration of Qn 200 mg/L. Further, for TOC removal the analysis of variance results of the RSM revealed that all parameter i.e. initial pH, catalyst dose, hydrogen peroxide dose, initial concentration of Py and initial concentration of Qn were highly significant according to the p values (p < 0.05). The quadratic model was found to be the best fit for experimental data. The present study revealed that BBD was reliable and effective for the determination of the optimum conditions for CWPO of NHCs (Py-Qn).

Shear bond strength of indirect composite material to monolithic zirconia

  • Sari, Fatih;Secilmis, Asli;Simsek, Irfan;Ozsevik, Semih
    • The Journal of Advanced Prosthodontics
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    • v.8 no.4
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    • pp.267-274
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    • 2016
  • PURPOSE. This study aimed to evaluate the effect of surface treatments on bond strength of indirect composite material (Tescera Indirect Composite System) to monolithic zirconia (inCoris TZI). MATERIALS AND METHODS. Partially stabilized monolithic zirconia blocks were cut into with 2.0 mm thickness. Sintered zirconia specimens were divided into different surface treatment groups: no treatment (control), sandblasting, glaze layer & hydrofluoric acid application, and sandblasting + glaze layer & hydrofluoric acid application. The indirect composite material was applied to the surface of the monolithic zirconia specimens. Shear bond strength value of each specimen was evaluated after thermocycling. The fractured surface of each specimen was examined with a stereomicroscope and a scanning electron microscope to assess the failure types. The data were analyzed using one-way analysis of variance (ANOVA) and Tukey LSD tests (${\alpha}$=.05). RESULTS. Bond strength was significantly lower in untreated specimens than in sandblasted specimens (P<.05). No difference between the glaze layer and hydrofluoric acid application treated groups were observed. However, bond strength for these groups were significantly higher as compared with the other two groups (P<.05). CONCLUSION. Combined use of glaze layer & hydrofluoric acid application and silanization are reliable for strong and durable bonding between indirect composite material and monolithic zirconia.

Recognition, Knowledge, and Behavior to Decrease Exposure toward Endocrine Disruptors in Dietary Life among Elementary School Students (식생활 관련 내분비계 장애물질에 대한 초등학생의 인식도, 지식 및 노출저감화 행동에 관한 연구)

  • Kim, Hyo-Chung;Kim, Mee-Ra
    • Korean journal of food and cookery science
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    • v.25 no.6
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    • pp.712-724
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    • 2009
  • The purpose of this study was to examine the degree of concern about endocrine disruptors, the degree of recognition about the risk of endocrine disruptors towards humans, the degree of worry about the risk of endocrine disruptors towards ones self or family, information-obtaining behavior regarding endocrine disruptors, the degree of knowledge and the degree of behavior to decrease exposure to endocrine disruptors, and the degree of an educational need for endocrine disruptors in the dietary life of elementary school students. The data were collected from 162 students in Seoul, Incheon, Daejeon, Daegu, Busan and Gwangju. Frequencies, Cronbach's alpha, t tests, analysis of variance, Duncan's multiple range tests and chi-square tests were conducted using SPSS V.14.0 for WINDOWS. The results of this study were as follows. The degree of concern about endocrine disruptors was not high. The respondents obtained most of their information regarding endocrine disruptors from TV/radio. Respondents had difficulty in acquiring and understanding the information. Both the degree of knowledge and the degree of behavior to decrease exposure were not high. The respondents showed a high degree of educational need for endocrine disruptors, the most important was methods to prevent damage from endocrine disruptors followed by risk of endocrine disruptors.

Influence of e-HRM and Human Resources Service Quality on Employee Performance

  • NURLINA, N.;SITUMORANG, Jubair;AKOB, Muhammad;QUILIM, Cici Aryansi;ARFAH, Aryati
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.10
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    • pp.391-399
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    • 2020
  • This study aims to analyze the relationship of e-HRM implementation to employee performance both directly and indirectly through the intervening of the Human Resource service Quality variable, both practically and theoretically. This study uses variance-based structural equation modeling (SEM) techniques with partial least square (PLS) statistical testing tools to test the direct relationship of e-HRM and the performance and relationship moderated by Human Resources service quality tested on 200 civil servants in five offices under the coordination of the Government of the South Sulawesi Province of Indonesia. The data collection model in this study uses an online survey. The data analysis stages through the explanatory concept consist of, first, the interpretation of the distribution of the average frequency of respondents' answers; second, outer-loading; third, determination of the validity and reliability; fourth, the coefficient of determination test and partial test; fifth, the GoF model; sixth, validity test; and seventh, hypothesis testing. This study explores four hypotheses in a comprehensive fashion; the results of this study show that all hypotheses have positive and significant effects both through direct and intervening relationships. Among the three direct relationships, the relationship of e-HRM variables on HR Service Quality is greatest and most dominant.

Structural Equation Modeling on Quality of Life in Stroke Survivors (뇌졸중 환자의 삶의 질 구조모형)

  • Suh, Min-Hee;ChoiKwon, Smi
    • Journal of Korean Academy of Nursing
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    • v.40 no.4
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    • pp.533-541
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    • 2010
  • Purpose: This study was designed to test structural equation modeling of the quality of life of stroke survivors in order to provide guidelines for development of interventions and strategies to improve their quality of life. Methods: The participants in the study were patients who visited the neurology outpatient department of a tertiary hospital in Seoul between June 25 and October 15, 2009. Data collection was carried out through one-on-one interviews. Demographic factors, functional independence, social support, nutritional status, post-stroke biobehavioral changes and quality of life were investigated. Results: The final analysis included 215 patients. Fitness of the hypothetical model was appropriate (${\chi}^2$=111.5, p=.000, GFI=.926, AGFI=.880, RMSA=.068, NFI=.911, CFI=.953). Functional dependency, social support and post-stroke biobehavioral changes were found to be significant explaining variance in quality of life. Post-stroke biobehavioral changes had the strongest direct influence on quality of life. Nutritional status had an indirect effect on the quality of life. Conclusion: To improve the quality of life of stroke survivors, comprehensive interventions are necessary to manage post-stroke biobehavioral changes, and strengthening social support networks that can contribute to enhancing the quality of life of stroke survivors.

Metal artifact production and reduction in CBCT with different numbers of basis images

  • Queiroz, Polyane Mazucatto;Santaella, Gustavo Machado;Groppo, Francisco Carlos;Freitas, Deborah Queiroz
    • Imaging Science in Dentistry
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    • v.48 no.1
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    • pp.41-44
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    • 2018
  • Purpose: To evaluate the effect of different numbers of basis images and the use of metal artifact reduction (MAR) on the production and reduction of artifacts in cone-beam computed tomography images. Materials and Methods: An acrylic resin phantom with a metal alloy sample was scanned, with 450 or 720 basis images and with or without MAR. Standard deviation values for the test areas (around the metal object) were obtained as a way of measuring artifact production. Two-way analysis of variance was used with a 5% significance level. Results: There was no significant difference in artifact production among the images obtained with different numbers of basis images without MAR (P=.985). MAR significantly reduced artifact production in the test areas only in the protocol using 720 basis images (P=.017). The protocol using 450 basis images with MAR showed no significant difference in artifact production when compared to the protocol using 720 basis images with MAR (P=.579). Conclusion: Protocols with a smaller number of basis images and with MAR activated are preferable for minimizing artifact production in tomographic images without exposing the patient to a greater radiation dose.

Effects of Plank Exercises with Resistance of One-Sided Hip Adduction on the Abdominal Muscle Thickness

  • Park, JaeCheol;Jeong, JinGyu
    • The Journal of Korean Physical Therapy
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    • v.31 no.2
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    • pp.82-87
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    • 2019
  • Purpose: The purpose of this study was to examine the effects of plank exercises with resistance of one-sided hip adduction on abdominal muscle thickness. Methods: Thirty subjects were divided into a group that underwent plank exercises with one-sided hip adduction resistance (n=15) and a group that underwent plank exercises only (n=15). Their changes in abdominal muscle thickness before the experiment (n=15) and three and six weeks after the experiment were analyzed using a two-way repeated analysis of variance at a statistical significance level of ${\alpha}=0.05$. When there was any interaction between the time of measurement and each group, post hoc t-tests were conducted at a statistical significance level of ${\alpha}=0.01$. Results: The results of the experiment showed statistically significant differences in the thickness of the rectus abdominis, internal oblique muscle, and transversus abdominis, depending on the time of measurement and the interaction between the time of measurement and each group (p<0.05). Statistically significant differences were observed in the thickness of the external oblique, depending on the time of measurement, the interaction between the time of measurement and each group, and variances between the groups (p<0.05). Conclusion: The results of this study indicated that plank exercises with resistance of one-sided adduction are effective for increasing abdominal muscle thickness. The study's overall findings will likely be used as basic data for lumbar stabilization exercises and rehabilitation treatment.

Influence of the Caregiver Burden on the Oral Health-related Quality of Life of the Spouse of an Elderly Person with Dementia at Home (재가 치매노인 배우자의 부양부담감이 구강건강관련 삶의 질에 미치는 영향)

  • Sung, Kiwol
    • Journal of Korean Public Health Nursing
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    • v.34 no.3
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    • pp.429-443
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    • 2020
  • Purpose: This study examined the influencing factors of caregiver burden on the oral health-related quality of life of the spouse of an elderly person with dementia at home. Methods: The participants were 115 spouses of dementia patients registered at dementia safety centers in five health centers in D city. Data were collected from June through December in 2019, using questionnaires of Oral Health Impact Profile (OHIP-49) and Burden Interview (BI). The data were analyzed using an independent t-test, one-way ANOVA, Pearson's correlation, and stepwise multiple regression analysis using the IBM SPSS Statistics 25.0 Program. Results: A negative correlation was observed between the oral health-related quality of life and caregiver burden (r=-37, p<.001). The caregiver burden (β=-.28, p=.001), subjective health status (β=.39, p<.001), and dental clinic visit (β=-.25, p=.002) explained 33.0% of the variance in the oral health-related quality of life. Conclusion: The development of nursing care for spouses of dementia patients will be needed to reduce the caregiver burden and enhance subjective health status and dental clinic visit, which influence the oral health-related quality of life of spouse of elderly people with dementia at home.

Comparison of Effects on Static Balance in Stroke Patients According to Visual Biofeedback Methods

  • Kyu-Seong Choi;Il-Ho Kwon;Won-Seob Shin
    • Physical Therapy Rehabilitation Science
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    • v.12 no.3
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    • pp.320-326
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    • 2023
  • Objective: The purpose of this study is to investigate the impact of visual biofeedback methods utilizing pressure sensors on the static balance of stroke patients. Design: Randomized crossover study. Methods: A total of 27 patients with hemiparesis participated in this study. The following three feedback conditions were considered: condition 1 (Knowledge of performance feedback), condition 2 (Knowledge of result feedback), and condition 3 (None feedback). A force plate was used to measure static balance. The total sway length, average sway velocity, x-axis excursion, and y-axis excursion of the center of pressure were measured. One-way repeated-measures analysis of variance was employed for comparisons of variables between each condition. The statistical significance level was set at α = 0.05 for all analyses. Results: There was a significant difference in the static balance results between each feedback condition (p<0.05). In the post-hoc results, it was confirmed that the static balance was significant in the order of knowledge of performance feedback, knowledge of result feedback, and none feedback. Conclusions: When comparing the three conditions, it was observed that knowledge of performance feedback showed the most improved effect on static balance ability. As further research progresses, that this approach could be used as an effective intervention method in clinical settings.