• Title/Summary/Keyword: Variance of Analysis

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Effects of Meteorology and Air Pollution on Respiratory Disease affecting Vulnerable Populations (기상 및 대기질이 건강취약집단에 미치는 영향)

  • Kang, Dongbae;Park, Changhyoun;Jung, Woo-Sik;Lee, KwiOk;Lee, Hwa Woon
    • Journal of Environmental Science International
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    • v.29 no.7
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    • pp.715-727
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    • 2020
  • It is well known that atmospheric environments, including both meteorology and air quality, significantly affect public health, such as chronic lung disease and cancer, and respiratory infections. In this study, we have analyzed correlations between the number of daily respiratory outpatients and the atmospheric environments data for about ten years for the city of Busan, South Korea. The respiratory problem patients data have been categorized into two health-vulnerable groups by age over 65(DayPA_O65) and under 20(DayPA_U20), each of which shows relatively higher correlations with air quality and meteorology, respectively. However, time series analysis with factor separation results in that DayPA_O65 and DayPA_U20 show a higher relation with variance components and daily irregular factors of atmospheric concentrations, respectively.

Influences of Calling, Work Value, and Organizational Commitment on Turnover Intention in Nurses Employed at University Hospitals in a Region (일 지역 대학병원 간호사의 소명의식과 직업가치, 조직몰입이 이직의도에 미치는 영향)

  • Kim, Moon-Jeong;Kim, So-Hee
    • The Korean Journal of Health Service Management
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    • v.10 no.1
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    • pp.67-77
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    • 2016
  • Objectives : This study was to test the influencing effects of calling, work value, and organizational commitment on turnover intention in hospital nurses. Methods : Two-hundred sixty hospital nurses were recruited in B city, South Korea. They were asked to complete a questionnaire, and 251 data sets were included in the multiple regression analysis. Results : Subjects had more extrinsic work value rather than intrinsic and a low calling level. There were significant correlations among transcendent summons, purpose/meaningfulness, pro-social intentions, intrinsic work value, and organizational commitment. Influencing factors of turnover intention were purpose/meaningfulness (t=-2.170, p=.031) and organizational commitment (t=-7.824, p<.001). The model was statistically significant explaining 27.8% of the variance (F=47.550, p<.001). Conclusions : Nurses showed a weak sense of calling and their work value leaned towards the extrinsic domain. Therefore, nurse managers should support a plan that enhances the calling and intrinsic work value of nurses to get them to commit to their organization and subsequently, reduce the turnover rate.

Evaluation and Identification of Promising Bivoltine Breeds in the Silkworm Bombyx mori L.

  • Begum, Azeezur Rehman Naseema;Basavaraja, Hadikere Kallappa;Joge, Punjab Govindrai;Palit, Aditya Kumar
    • International Journal of Industrial Entomology and Biomaterials
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    • v.16 no.1
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    • pp.15-20
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    • 2008
  • Under the all India programme of evaluation of mulberry and silkworm genotypes, twelve bivoltine silkworm breeds obtained from Central Silkworm Germplasm Resource Centre, Hosur (CSGRC) were evaluated at the bivoltine silkworm breeding laboratory, Central Sericultural Research & Training Institute, Mysore (CSR&TI). These breeds were tested during September-October 2003, August-September 2004 and February-March 2005. The average temperature and humidity during September-October 2003 was $26.5^{\circ}C$ and 72.6% RH, while during August-September 2004, it was $26.5^{\circ}C$ and 75.2% RH and during February-March 2005 it was $24^{\circ}C$ and 48% RH respectively. The performance of the breeds in respect of 21 traits was studied and statistically analyzed using analysis of variance (Singh and Choudhary, 1985). Silkworm breeds were short-listed using multiple trait evaluation index method as suggested by Mano et at., (1993). Evaluation Index values were calculated for all the 11 traits of economic importance and six breeds were short-listed based on average index value 50 and above 50. Two breed viz., BV 183 (SMGS-1) have recorded average E.I. >50 in 10 traits (except in neatness) and ranked first and the breed BV 262 (SMGS9) with E.I. value >50 in nine traits except in cocoon weight and neatness ranked second, in the order of merit. These two breeds may be selected as resource material for evolving region specific silkworm breeds.

Health Perception and Family Support as Influencing Factors on Depression in Hospitalized Elderly Patients (건강지각과 가족지지가 입원 노인환자의 우울에 미치는 영향)

  • Lee, Sun-Ok;Kim, Moon-Jeong
    • The Korean Journal of Health Service Management
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    • v.9 no.4
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    • pp.145-155
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    • 2015
  • Objectives : The purpose of this study was to test the influencing effects of health perception and family support on depression in elderly patients. Methods : Two-hundred forty-nine hospitalized geriatric patients were recruited in B city, South Korea. They were asked to complete a questionnaire, and 214 data sets were included in multiple regression analysis. Results : Subjects perceived a higher level of depression. Influencing factors of depression were hospitalization experience (t=3.476, p=.001), health perception (t=-3.310, p=.001), education (t=2.684, p=.008), economic satisfaction (t=2.579, p=.011), satisfaction with allowance (t=2.262, p=.025), and family support (t=-2.200, p=.029). The model was statistically significant explaining 36.3% of the variance (F=21.257, p<.001). Conclusions : In dealing with depression, nurses in elderly care facilities should be more concerned about patients with hospitalization experiences. Interventions to improve health perception should be provided to elderly patients, and educational programs on how to support patients are needed for the families of patients.

The Effect of Perceived Parental Bonding on Self-Concept (지각된 부모- 자녀관계가 자녀의 자아개념에 미치는 영향)

  • Moon, Young-Sook;Han, Jin-Sook
    • Korean Parent-Child Health Journal
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    • v.6 no.2
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    • pp.93-102
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    • 2003
  • The study was designed to examine the effect of perceived past parent-child bonding on present parent-child attachment, self-concept. The data collection period was October 6-18, 2003. The subject was college students in university located in Nonsan, Taejon city and 197 surveys were used in the analysis. As for the tools used in this study to assess the perceived past parent - child bonding scale by Parent Bonding Instrument - Korean Version, and present parent-child attachment were measured with the The Inventory of Parent and Peer Attachment, and self-concept were measured with Jung, Won Sik's self-concept inventory. For the data processing, the analyses of variance, multiple regression, correlation were carried out. The result of this study is summarized as follows. 1. The examination of the effect of perceived past parent-child bonding on present parent-child attachment showed that significant differences are made by communication, trust, alienation in care, overprotection perceived past parent-child bonding. 2. As for the correlation between perceived past parent-child bonding and child self-concept, a significant correlation is revealed between care, overprotection perceived past parent-child bonding and child self-concept.

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A Study on the Design of Low Back Muscle Evaluation System Using Surface EMG (표면근전도를 이용한 허리근육 평가시스템의 설계에 관한 연구)

  • Lee Tae-Woo;Ko Do-Young;Jung Chul-Ki;Kim In-Soo;Kang Won-Hee;Lee Ho-Yong;Kim Sung-Hwan
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.54 no.5
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    • pp.338-347
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    • 2005
  • A computer-based low back muscle evaluation system was designed to simultaneously acquire, process, display, quantify, and correlate electromyographic(EMG) activity with muscle force, and range of motion(ROM) in the lumbar muscle of human. This integrated multi-channel system was designed around notebook PC. Each channel consisted of a time and frequency domain block, and T-F(time-frequency) domain block. The captured data in each channel was used to display and Quantify : raw EMG, histogram, zero crossing, turn, RMS(root mean square), variance, mean, power spectrum, median frequency, mean frequency, wavelet transform, Wigner-Ville distribution, Choi-Williams distribution, and Cohen-Posch distribution. To evaluate the performance of the designed system, the static and dynamic contraction experiments from lumbar(waist) level of human were done. The experiment performed in five subjects, and various parameters were tested and compared. This system could equally well be modified to allow acquisition, processing, and analysis of EMG signals in other studies and applications.

Do Real Interest Rate, Gross Domestic Savings and Net Exports Matter in Economic Growth? Evidence from Indonesia

  • SUJIANTO, Agus Eko;PANTAS, Pribawa E.;MASHUDI, Mashudi;PAMBUDI, Dwi Santosa;NARMADITYA, Bagus Shandy
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.127-135
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    • 2020
  • This study aims to measure the effects of real interest rate (RIR), gross domestic savings (GDS), and net exports (EN) shocks on Indonesia's economic growth (EG). The focus on Indonesia is unique due to the abundant resources available in the nation, but they are unsuccessful in boosting economic growth. This study applied a quantitative method to comprehensively analyze the correlation between variables by employing Vector Autoregression Model (VAR) combined with Vector Error Correction Model (VECM). Various procedures are preformed: Augmented Dickey-Fuller test (ADF), Optimum Lag Test, Johansen Cointegration Test, Granger Causality Test, as well as Impulse Response Function (IRF) and Error Variance Decomposition Analysis (FEVD). The data were collected from the World Bank and the Asian Development Bank from 1986 to 2017. The findings of the study indicated that economic growth responded positively to real interest rate shocks, which implies that when the real interest rate experiences a shock (increase), the economy will be inclined to growth. While, economic growth responded negatively to gross domestic savings and net export shocks. Policymakers are expected to consider several matters, particularly the economic conditions at the time of formulating policy, so that the prediction effectiveness of a policy can be appropriately assessed.

A Path Analysis of Social Support in Patients with Hemodialysis: Based on the Self-regulation Model (혈액투석환자의 사회적 지지 경로분석 : 자기조절모형에 기반하여)

  • Cha, Jieun;Yi, Myungsun
    • Journal of Korean Clinical Nursing Research
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    • v.21 no.1
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    • pp.116-126
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    • 2015
  • Purpose: The purpose of this study was to examine the relationship between social support (family, healthcare provider, friends/peer), treatment belief, hope, and health status in patients on hemodialysis, and to identify direct and indirect effects of the variables on patients' health status. Methods: The self-regulation model was used to establish a path model. Data were collected from 240 patients. Multidimensional Scale of Perceived Social Support, Revised Illness Perception Questionnaire, Herth Hope Index, and Medical Outcomes Study Short Form-12 were used. Data were analyzed using the SPSS and AMOS programs. Results: The model was supported by fit statistics ($x^2=3.33$, p=.343, GFI .995, RMSEA .021, AGFI .968, NFI .986, CFI .999, TLI .993). Family and friends/peer support showed a significant direct influence on hope, while healthcare provider support directly influenced treatment belief. Social support, treatment belief, and hope directly and indirectly influenced health status, explaining 28.7% of the variance. Conclusion: These results show mechanisms underlying connections between social support and health status by demonstrating impact of social support and showing treatment belief and hope as mediators between social context and outcomes. To promote health of patients on hemodialysis, it is necessary for patient, family, healthcare professional, and friends to collaborate.

An Investigation of Exposure to Informational Text through English Textbooks

  • Kim, Tae-Eun
    • English Language & Literature Teaching
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    • v.15 no.2
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    • pp.185-207
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    • 2009
  • This study investigated the extent of informational text genre appeared in English textbooks at grades six, seven, and nine. Employing content analysis to analyze the literary forms, the researcher identified genre in each reading selection of each English textbook and classified it into six categories - fiction, information, biography, poetry, play, or fantasy. Especially, informational genre was classified further into two subcategories - non-narrative and narrative - in order to investigate the extent of non-narrative informational text only. The text genre was examined by analyzing (a) the number of reading selections representing each genre and (b) the number of words in reading selections devoted to each genre. The most frequent type of genre at grade 6 and 7 was fiction with 94% and 71% respectively, whereas at grade 9 it was devoted to information (51%), followed by fiction (37%). The largest number of words was devoted to fiction with 96% at the sixth grade and 70% at the seventh grade; on the other hand, for grade 9, it was devoted to information (46%), followed by fiction (39%). Although there was variance across different publishers, the informational text genre gained more significance as the grade level increased. In particular, the percentage of reading selections and words devoted to the non-narrative or expository informational genre was overall 4% at grade 6, 17% at grade 7, and 44% at grade 9. The findings demonstrated the need to pay more attention to informational literacy especially in the early grades for the development of balanced genre knowledge.

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Process Capability Analysis by the Experiment of Chips (Chips 실험에 의한 공정능력의 해석)

  • 송서일;황의철
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.10 no.16
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    • pp.63-73
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    • 1987
  • Process capability is reflected on four major factors such as materials, equipments. skill of operators, and methods. The status of the process is typically represented by the mean value 〔$\mu$〕as a central tendancy, and the variance 〔$\sigma$$^2$〕 as a magnitude of dispersion. This paper analyzes the process capability by the experiment of chips is accounted on a population from the process. So, this paper analyzes the next four cases : (1) When the process distribution is changed from N[$\mu$$_1$, $\sigma$$^2$〕to N〔$\mu$$_2$, $\sigma$$^2$〕. (2) When the process distribution is changed from N[$\mu$, $\sigma$$_1$$^2$] to N[$\mu$, $\sigma$$_2$$^2$]. (3) When the population is compounded by the different two distributions of N〔$\mu$$_1$, $\sigma$$^2$〕and N〔$\mu$$_2$, $\sigma$$^2$〕. (4) When the population is compounded by the different two distributions of N〔$\mu$, $\sigma$$_1$$^2$〕 and N[$\mu$$\sigma$$_2$$^2$].

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