• Research in Community and Public Health Nursing
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• v.6 no.2
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• pp.234-249
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• 1995

Essential hypertension, one of the leading primary cause of death in Korea, is a typical chronic disease requiring adequate and continuous management. Though these hypertensives need to maintain desirable health practice by themselves for their life time, many previous studies indicated that most of the essential hypertensives have no specific symptoms and thus, reluctant to follow appropriate medical regimens causing the condition further aggravated and complicated. Thus the comprehensive self-regulation program was conducted as a nursing intervention on the promotion self-care 'performance and improvement in physical parameters of hypertensives. For this purpose, a one group quasi -experimental research with pre and post test design was used. And the whole program was carried out from October, 1993 to February, 1994. Self-regulation program was consisted with group education on hypertension and self-care, self-regulation including the blood pressure self-monitoring and recording, recording of daily self-care activities, and encouraging and reinforcing self-efficacy through verbal persuation and enactive attainment. The subjects were asked to measure their own blood pressure by themselves twice per day and to record blood pressure and the daily self-care performance according to the instructions provided during the whole period of 9 weeks. The data was analyzed by experimental stages: the first week, the fifth week, and the ninth week since the experimental imput began. Data were analyzed by the SPSS PC+ program with paired t -test and F-test, and multiple correlation to determine the variables affecting the effect of program. The results were as follows : 1) Subjects in J company were significantly lower diastolic blood pressure than K company after the program (t=2.39, p=.024). Level of cholesterol was significant difference according to position(t=2.23, p=.034), family history (t=-2.66, p=.013), diagnosis duration, and career(t=2.88, p=.055). Perceived self-efficacy was more significantly increased among the group with family history(t=-3.00, p=.013). 2) Before the program, there were significant positive correlation among the variables: internal-LOC and self-efficacy(r=.3952, p=.015), external-LOC and barriers (r=.6515, p=.000), chance-LOC and Barriers(r=.4133, p=.012). However there were significant negative correlation between internal-LOC and barriers (r=-.3236, p=.041, external-LOC and self -efficacy(r=-.3517, p=.028), self-efficacy and barriers(r=-.6654, p=.000). 3) There were significant relationships between changes in self - care performance and self-efficacy at 5th week (r=.5313, p=.001) and changes in self-efficacy at 9th week(r=.4586, p=.005). 4) After the program, internal health locus of control and perceived benefits showed significant correlation(r=.5673, p=.001, but perceived barriers was negative correlation with perceived self-efficacy (t=-4242, p=.01). From the above results, it can be concluded that the self-regulation program is an effective nursing strategy through the change of variables to promote self-care performance of hypertensives and to increase the self-efficacy. Thus this program can be recommended in the management of the hypertensives in workplaces and community settings.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.39 no.10
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• pp.985-993
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• 2015

Free-piston Stirling engines (FPSEs) have attracted much attention in the renewable energy field as a key device in the conversion from thermal to mechanical energy, and in the recycling of waste energy. Traditional Stirling engines consist of two pistons that are connected by a mechanical link, while FPSEs are formed as a vibration system by connecting each piston to a spring without a physical link. To ensure the correct design and control of operations, this requires elaborate dynamic-performance predictions. In this paper, we present the performance-prediction methodology using a linear and nonlinear dynamic analytical model considering the external load of FPSEs. We perform linear analyses to predict the operating point of the engine using the root locus technique. Using nonlinear analysis, we also predict the amplitude of pistons by performing numerical integration considering both the linear and nonlinear damping terms of the external load. We utilize the predicted dynamic behavior to predict the engine performance. In addition, we compare the experiment results and existing model predictions for RE-1000 to verify the reliability of the analytical model.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.921-930
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• 2013

Objective: After introduction of the Elderly Long Term Care Insurance, number of geriatric hospitals increased greatly. However, few studies were conducted on the satisfaction of the patients of the geriatric hospitals especially on the intention to reuse geriatric hospitals. Methods: The current study modified Sheth's consumption value model, useful for the development of an effective marketing strategy for geriatric hospitals, and tested it in Korean circumstances. The survey was conducted at two municipal hospitals and three private hospitals in Seoul and Gyeonggi Province between August 1 and September 30 of 2012. Data were collected from 472 inpatients who are 60 years or older. The structured research tool was developed and distributed. Factor analysis and hierarchical logistic regression analysis were conducted using SPSS(version 14.0) Results: The result of the research suggested that the satisfaction on rehabilitation services, which is a functional value, among the consumption values was the strongest factor on the intention to reuse geriatric hospitals. Impression of high-end luxury, reliability of care, and outside locus of control on health followed. Conclusion: It is recommended that geriatric hospitals ought to improve rehabilitation programs, facilities, and equipments and enhance kindness of staff to encourage intention to reuse geriatric hospitals.

• Korean Journal of Social Welfare
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• v.57 no.4
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• pp.35-65
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• 2005

The purpose of this study is to examine the Korean social workers' level of social work values and advocacy(attitudes and strategies) and to verify the relations among social work education, social work advocacy and social work values by examining whether social work education influences social work advocacy and social work values, and whether social work values affect social work advocacy. Further, this study wishes to confirm not only the direct effect that social work education has on social work advocacy, but also how social work education indirectly influences social work advocacy through social work values as a mediator. The research of this study was conducted on 242 social workers who have obtained social worker licenses and are currently working in the community centers. As survey tools, this study utilized social work advocacy attitudes, social work advocacy strategies, outcomes of social work education, social work values, self-esteem and locus of control. Collected data were analyzed by using SPSS/PC+ 12.0 for descriptive analysis, Pearson's correlation, reliability analysis, exploratory factor analysis and multiple regression. The research hypothesis was established according to the analysis method of the testing mediation of Baron & Kenny (1986) in order to examine whether social work values intervene between social work education and social work advocacy. The results of the hypothesis test confirm that social work values on the social level serve as a mediator variable.

• Korean Journal of Culture and Social Issue
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• v.20 no.2
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• pp.155-176
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• 2014

The previous researches of gambling have been rather focused on the legal gambling industry and gambling addiction and ignored the issue of illegal gambling. But, illegal gambling in Korea has been continuously growing in its volume and the numbers of the relevant mental and social problems such as gambling addiction, crimes, suicides, and etc. have been increasing rapidly. The present study investigated the psychological characteristics of illegal gamblers with comparing gamblers who never experienced illegal gambling (NE), who experienced illegal gambling but participate mainly in legal gambling (EIG), and who participate mainly in illegal gambling (MIG). 1317 NEs, 177 EIGs, and 37 MIGs were recruited and completed an online survey that measured individual dispositions (risk-taking tendency, regulatory focus, locus of control), attitudes towards gambling regulations, misconception of illegal gambling, motives (monetary, excitement, socialization), and emotions. First, EIGs and MIGs, compared to NEs, preferred risk-taking, and EIGs were more promotion focused than NEs. Also, EIGs perceived illegal gambling as less illegal and tended to hold more misconceptions about illegal gambling, compared to NEs. Furthermore, EIGs and MIGs had stronger monetary and excitement motivation than NEs. Finally, MIGs were more likely to feel anxious than other groups. Focusing on the illegality of gambling, the characteristics of illegal gamblers are discussed and political implication on illegal gambling is suggested.

• Journal of Korean Academy of Nursing
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• v.20 no.2
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• pp.185-194
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• 1990

The purpose of this study was to investigate the correlation of discomfort. self - esteem. personality and life - satisfaction in persons with rheumatoid arthritis and to provide basic data to help them attain a better quality of life. From Jan. 27 to Feb. 24, 1988, 53 patients, registered at a rheumatic clinic at one general hospital in Seoul, were accepted as subjects for this study. The instruments used for this study were a discomfort scale and life- satisfaction scale developed by the researcher, Rosenberg's Self - esteem Scale and Wallston and Wallston's Multidimensional Health Locus of Control (MEILC) Scale. The reliability of the scales were tested by Cronsbach's alpha. The collected data were analyzed by the SAS program using unpaired t-test, ANOVA, and Pearson's Correlation Coefficients. The results were as follows : 1. There was a significant difference in the subjects perceived discomfort level(t＝-3.49, p＝ .0010) between the onset of the disease(14.87$\pm$9.02) and the present(19.87$\pm$8.44). 2. There was a significant correlation between the MHLC - internal score and the MHLC -chance score (r＝-.4366, p＝ .0011). 3. The findings related to the demographic variables regarding the MHLC scores were as follows : 1) Regarding sex, there was a significant difference for the MHLC -internal score(t＝4.2572, df＝15.2, p＝ .0007) between male(32.13$\pm$2.47) and female(27.56$\pm$4.17). But the MHLC-chance score for male(15.13$\pm$2.85) was lower(t＝3.1539, df＝21.8, p$\pm$ .0047) than for female(19.47$\pm$6.29). 2) Regarding educational background, the MHLC - chance score for the below - high school group(20.52$\pm$5.81) was higher(t＝2.5450, df＝51.0, p＝ .0140) than the college graduate group(16.41$\pm$5.76). 4. The average Self - esteem score was 26.87 (S.D.＝5.29) and there was a significant correlation between the Self- esteem score and the MHLC - chance score (r＝ .3122, p＝ .0026). 5. It was found that the subjects' Discomfort score was correlated with the Self -esteem score(r＝-.3788, p＝ .0051) and the Life - satisfaction score(r＝-3570, p＝ .0087). It was also found that subjects' Self - esteem score was correlated with the Life-satisfaction score(r＝ .4474, p＝ .0008).

• Journal of dental hygiene science
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• v.11 no.6
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• pp.563-571
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• 2011

The purpose of this study was to identify the major variables against oral health promotion behaviors for collegian in Ulsan area. The measured variables for the oral promotion behaviors presently are previous oral health experience, stress by study, subjective oral health, perceived benefit, perceived barrier, self-esteem, self-efficacy, social support, oral health LOC(locus of control), life satisfaction, emotion and intension based on the Pender's 3th health model as a theoretical model in general health promotion behavior. Total data 330 were analyzed by SPSS 18.0 and AMOS 18.0 program and path analysis method was used to verify the model's fitness. Results for this study were as follows: Firstly, the fitness degrees of research model was ${\chi}^2=39.06$(P>.05), GFI = .982, AGFI = .948, NFI = .967, NNFI = .982, RMSR = .028, so it was apparent that this model was well fitted. Secondly, 27 out of 39 total paths were turned out correspond with the hypothetical model which accepted as direct effect. And two paths had statistical significance in direct. Thirdly, the most positive influences on the oral health promotion behaviors presently were previous oral health experience, subjective oral health, social support, self-efficacy, intension, oral health LOC. And the most negative influences was perceived barrier. So, results from this model we could contribute to identify theirs oral health behavior patterns for collegian in Ulsan.

• 한국벤처창업학회:학술대회논문집
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• 2008.11a
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• pp.83-112
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• 2008

In this study, the effects of the founder's characteristics on venture's business success factors for pet business was investigated focused on the pet hospitals. The effects of the founder's background and psychological characteristics, the business start-up preparing procedure characteristics, and service factor characteristics for customers on the business performance was analyzed by classifying it into financial business performance and non-financial business performance for the he pet hospitals. The questionnaire survey for 150 pet hospitals located in Seoul and Gyunggi-do area was performed, and the main conclusions was drawn as follows. First, as a result of research model analysis for financial business performance among the business performance, it was analyzed that the founder's academic background factor among the founder's background factors had a statistically significantly negative Influence on the financial business performance, on the contrary, the control locus factor among the founder's psychological factors, and the financing factor among the business start-up preparing procedure factors had a statistically significantly positive influence on the financial business performance. Second, as a result of research model analysis for non-financial business performance among the business performance, it was analyzed that the danger acceptance propensity factor among the business start-up preparing procedure factors and the intangible service quality factor among the service quality factors had a statistically significantly positive influence on the non-financial business performance.

• Journal of Environmental Policy
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• v.13 no.3
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• pp.109-133
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• 2014

With a growing concern about climate change and green house gases mitigation, carbon labeling policy has been launched in several countries as an environmental policy which connects low carbon production to low carbon consumption. This research aims to propose a model that explains consumers' attitude and brand loyalty toward carbon labeling products. This model specifies the consumer's psychological processes by which consumer values, such as autonomy and environmental values, affect carbon labeling product and corporate images and finally form brand loyalty toward carbon labeling products. Panel data were collected in two separate surveys and analyzed using a structural equation technique. Results are summarized as follows. First, consumers' autonomy value(AV) positively affects locus of control(LC) and corporate image(CI). Second, consumers' environmental value(EV) positively influences perceived consumer effectiveness(PCE), which in turn has a negative effect on perceived barriers(PB). Perceived barriers finally affect product image(PI) negatively. Third, both corporate image and product image have causal relationships with brand loyalty. Our results suggest that carbon labeling policy contributes not only to the reduction of greenhouse gases but also to the increase of consumers' attitude and brand loyalty toward carbon labeling products. This research also provides governments with directions for efficient environmental policy and firms with guidance on effective marketing strategies about carbon labeling.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.11
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• pp.6403-6409
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• 2013

Purpose: Biallelic germline variants of the 8-hydroxyguanine (8-OG) repair gene MYH have been associated with colorectal neoplasms that display somatic $G:C{\rightarrow}T:A$ transversions. However, the effect of single germline variants has not been widely studied, prompting the present investigation of monoallelic MYH variants and susceptibility to sporadic colorectal cancer (CRC) in a Chinese population. Patients and Methods: Between January 2006 and December 2012, 400 cases of sporadic CRC and 600 age- and sex-matched normal blood donors were screened randomly for 7 potentially pathogenic germline MYH exons using genetic testing technology. Variants of heterozygosity at the MYH locus were assessed in both sporadic cancer patients and healthy controls. Univariate and multivariate analyses were performed to determine risk factors for cancer onset. Results: Five monoallelic single nucleotide polymorphisms (SNPs) were identified in the 7 exon regions of MYH, which were detected in 75 (18.75%) of 400 CRC patients as well as 42 (7%) of 600 normal controls. The region of exon 1 proved to be a linked polymorphic region for the first time, a triple linked variant including exon 1-316 $G{\rightarrow}A$, exon 1-292 $G{\rightarrow}A$ and intron 1+11 $C{\rightarrow}T$, being identified in 13 CRC patients and 2 normal blood donors. A variant of base replacement, intron 10-2 $A{\rightarrow}G$, was identified in the exon 10 region in 21 cases and 7 controls, while a similar type of variant in the exon 13 region, intron 13+12 $C{\rightarrow}T$, was identified in 8 cases and 6 controls. Not the only but a newly missense variant in the present study, p. V463E (Exon 14+74 $T{\rightarrow}A$), was identified in exon 14 in 6 patients and 1 normal control. In exon 16, nt. 1678-80 del GTT with loss of heterozygosity (LOH) was identified in 27 CRC cases and 26 controls. There was no Y165C in exon 7 or G382D in exon 14, the hot-spot variants which have been reported most frequently in Caucasian studies. After univariate analysis and multivariate analysis, the linked variant in exon 1 region (p=0.002), intron 10-2 $A{\rightarrow}G$ (p=0.004) and p. V463E (p=0.036) in the MYH gene were selected as 3 independent risk factors for CRC. Conclusions: According to these results, the linked variant in Exon 1 region, Intron 10-2 $A{\rightarrow}G$ of base replacement and p. V463E of missense variant, the 3 heterozygosity variants of MYH gene in a Chinese population, may relate to the susceptibility to sporadic CRC. Lack of the hot-spot variants of Caucasians in the present study may due to the ethnic difference in MYH gene.