• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.15 no.4
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• pp.45-55
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• 2020

The purpose of this study is related to the entrepreneurial activation of middle-aged and the elderly people for identifying the influence of entrepreneurial competency and entrepreneurial motivation on the entrepreneurial intentions and the mediating effects of opportunity search. In order to achieve the purpose of this study, a survey was conducted targeting the middle-aged and the elderly people in the ages of 40~60 years, and among 250 copies of collected questionnaires, 230 copies were finally used. SPSS 24.0 program was used for analysis. Results are as follows. First, the entrepreneurial competency had a positive effect on entrepreneurial intentions. Specifically, it has been proved that information competency, experience competency, network competency had a significant influence on entrepreneurial intentions. Second, the entrepreneurial motivation had a positive effect on entrepreneurial intentions. Furthermore, it has been proved that independence maintenance, wealth creation had a positive effect on entrepreneurial intentions, but cost of living were rejected. Third, the results of verifying the mediating relationship of opportunity search showed that the opportunity search has performed a mediating role in the effect of experience competency, network competency, and independence maintenance on entrepreneurial intentions.

• Clinical and Experimental Pediatrics
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• v.58 no.10
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• pp.386-391
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• 2015

Purpose: To evaluate the outcomes and prognostic factors in children with extracranial germ cell tumors (GCTs) treated at a single institution. Methods: Sixty-six children diagnosed with extracranial GCTs between 1996 and 2012 were included in the study. Primary treatment was surgical excision, followed by six cycles of cisplatin-based chemotherapy. The survival rates were compared according to the International Germ Cell Cancer Cooperative Group classification used for GCTs in adults to validate the classification guidelines for GCTs in children. Results: The median patient age was 4.4 years. In 34 patients (51.5%), the primary tumor site was the gonad. Extragonadal GCTs were detected in 32 patients. The 5-year overall survival and event-free survival (EFS) were $92.0%{\pm}3.5%$ and $90.4%{\pm}3.7%$, respectively. In univariate analysis, tumor histology, metastasis, and elevated alpha-fetoprotein were not prognostic factors in children with extracranial GCTs. However, EFS was poorer in patients with mediastinal disease (n=12, $66.7%{\pm}13.6%$) than in those with nonmediastinal disease (n=54, $96.0%{\pm}2.8%$) (P=0.001). The 5-year EFS was lower in patients older than 10 years, (n=21, $80.0%{\pm}8.9%$) compared with those younger than 10 years (n=45, $95.2%{\pm}3.3%$) (P=0.04). Multivariate analysis identified the mediastinal tumor site as the only independent prognostic factor. Conclusion: The prognosis of children with extracranial GCTs was favorable. However, nongerminomatous mediastinal tumors were associated with poor survival in children. Further research is needed to improve the prognosis of children with malignant mediastinal GCTs.

• Journal of dental hygiene science
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• v.10 no.2
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• pp.117-122
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• 2010

The purpose of this study was to obtain basic data on the relationing between smoking, drinking and periodontal pocket formation. There was no nationwide epidemiologic study on periodontal diseases and smoking, drinking in korea. 177 adults aged 20 and older were recruited the study subjects. Data for smoking, drinking and general characteristics were collected by questions. Periodontal pocket formation was measured greater than 3 mm by probing. Sectional arch numbers of periodontal pocket formation by sex, marriage status and drink yes or no were no statististically difference. Sectional arch numbers of periodontal pocket formation by ages were statististically to increase in proportion to age. Sectional arch numbers of periodontal pocket formation by economic status were statististically to increase in proportion to high economic status. Sectional arch numbers of periodontal pocket formation by smoke yes or no were statististically to increase more smokers than non-smokers. According to regression analysis, periodontal pocket formation was influenced by age, economic status and smoke yes or no.

• Journal of dental hygiene science
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• v.14 no.2
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• pp.107-113
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• 2014

This study was conducted to evaluate the association between periodontal disease and diabetes mellitus. The final analysis population of this study was composed of 4,830 adults with diabetes mellitus or periodontal disease and aged 19 years or older, based on the third-edition data of the 4th Korea National Health and Nutrition Examination Survey (KNHANES) (in 2009). Diabetic status and potential confounders were used in questionnaire materials and physical examination materials, and the presence of periodontal disease was used in the materials for oral health examination by a dentist. For diabetic status, fasting plasma glucose (FPG) levels <100 mg/dl were subcategorized into normal group and FPG levels ${\geq}100mg/dl$ into impaired fasting glucose group; glycosylated hemoglobin (HbA1c) levels <7% into normal group and HbA1c ${\geq}7%$ into diabetes group, on the basis of the American Diabetes Association. According to the 2009 Korea Health Statistics, the case where the pocket depth is 3 mm or more was defined as periodontal disease. The association between the two diseases was evaluated through $x^2$-test and logistic regression analysis using R-commander 2.14. In impaired fasting glucose group, community periodontal index (CPI) groups 3 to 4 had higher risks for periodontal disease 1.23 times (95% confidence interval, 1.07~1.42) than those of CPI groups CPI 0~2, even after adjustment for several confounders. In addition, periodontal disease and diabetes mellitus showed statistically significant differences depending on age, sex, income level, educational background, smoking status, alcohol consumption, and snack intake. The analyses of the third-edition data of the 4th KNHANES showed that there was a statistically significant association between periodontal disease and diabetes mellitus as examined by means of CPI in this study.

• Korea Journal of Hospital Management
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• v.23 no.1
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• pp.41-50
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• 2018

The purpose of this research is to evaluate Brand Value by using the K-BPI(Korea Brand Power Index) of Korea Management Association which is based on consumer awareness, as well as to identify how Brand Value which is composed of top of awareness, unaided awareness, aided awareness, image, possibility of purchasing, preference, affects on the Market Share perceived by consumers. This research subjects were 10 hospitals with more than 1,000 beds in Seoul and Gyeonggi-do, and survey subjects were 20 or older adults living in the metropolitan area of Korea. Using K-BPI for measuring Brand Value and used calculation of Market Share according to consumer preference model for measuring Market Share. The major results of this research are as follows: First, this research identified that the top 5 hospitals of largest hospitals in metropolitan area measured by using K-BPI and Market Share were same hospitals as Big 4 hospitals of previous research evaluating the comprehensive competitiveness of hospitals and also same as hospitals that appeared recently. Second, Big 5 hospitals ranked first to fifth in both Brand Value and Market Share. To identify the relationship between K-BPI items(top of awareness, unaided awareness, aided awareness, image, availability, preference) and Market Share, multiple linear regression was used by dividing 5 upper and 5 lower group of hospitals per each. The group of 5 upper hospitals had a significant effect on Market Share, with 'top of awareness', 'unaided awareness', 'aided awareness'. The group of 5 lower hospitals had a significant effect on Market Share with 'unaided awareness', 'aided awareness'. The results of this study and hospitals of the first to third hospitals published in the K-BPI press release reported by KMAC in 2017, and the previous studies evaluating the comprehensive competitiveness hospitals, all had one thing in common that Big 4 hospitals ranked high position. This suggests that evaluation of Brand Value also can be a evaluation measure of hospital. A new competitiveness of hospital is expected by managing brand awareness to have a brand competitiveness and by securing intrinsic Market Share of consumer to reach hospital use ultimately.

• Journal of agricultural medicine and community health
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• v.8 no.1
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• pp.28-34
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• 1983

In spite of the world-wide increase of incidence of pesticide poisoning due to greater use of pesticides, the epidemiological study of pesticide poisoning in Korea has been grossly neglected. The author gained access to the medical records for two year period (1981 through 1982) from local clinics, hospitals and health centers of Kyungpook area to investigate the status of the pesticide poisoning. During these two years, there were 1,618 cases of documented pesticide poisoning, of which in 1981 were 765 and in 1982 were 853. Those in the twenties decade of age was the most frequent and the male(70%) was more liable than the female (30%). In view of manner of poisoning, occupational poisoning was 27.8%, accidental 5.6%, and suicidal 66.6%. There are three distinct groups which make up the large majority of both fatal and nonfatal cases; young children who accidentally ingest pesticides, young to middle age adult who are occupationally poisoned, and middle age to older adults who suicidally ingest pesticides. The seasonal distribution of these poisonings disclosed the peak month to be July, with August next, followed by June and September. Only 11% of cases occurred during the three-month winter season of December to February. Thus pesticide caused poison- ing was primarily a summer and early fall occurrence. During these two years, average of 67 cases of poisoning was observed monthly. Of the pesticide poisoning documented, 49% were treated with poisoning patients from local clinic and 43% from hospital. The case fatality rate of occupational poisoning was 0.9%, accidental 5.6% and suicidal 20.3%. The mean overall case fatality rate was 14.1%. Annual incidence of pesticide poisoning was 25.4 per 100,000 population in the study area. There is a nationwide need for more reliable date on pesticide poisoning. This need can only grow more acute with the passage of time because of the increasing importance of pesticides as a cause of morbidity and mortality.

• Parasites, Hosts and Diseases
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• v.29 no.2
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• pp.161-172
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• 1991

The complete life cycle of Echinostoma hertense has been maintained in the laboratory, using Lymnaea persia snails and Rana nigromaculata tadpoles as the first and second intermediate hosts. ICR mice was used as the definitive host. Within the egg of 5. hotense, the miracidium was fully matured in 13 days of incubation at $29~30^{\circ}C$. The miracidium was $93.8{\times}53.6{\;}{\mu\textrm{m}}$ in average size, covered with numerous cilia of $7~11{\;}{\mu\textrm{m}}$ length. The epidermal plates were arranged in 6-8-4-2 formula. The first generation rediae ($1.19{\times}0.27{\;}mm$ in average size) were observed in 14 days after miracidial challenge to the snails, and the second generation rediae ($1.40{\times}0.26{\;}mm$ in average size) in 30 days. The average sixte of the cercaria was $295.5{\times}145.0{\;}{\mu\textrm{m}}$. Their head crown was poorly developed, and collar spines were not yet observed. After a cercarial challenge to the tadpoles, all of the tadpoles became infected and the average worm recovery rate was 88.5%. The majority of the metacercariae (75.5%) were recovered from the muscle of the tadpole's posterior body and the rest (24.3%) from their gills. The metacercariae from the tadpoles were elliptical, and $167.7{\times}129.9{\;}{\mu\textrm{m}}$ in average size. The recovery rate of adults from the mice was difFerent by the age of the metacercariae grown in the tadpoles. The metacercariae younger than 5 hrs could not infect mice whereas those older than 6 hrs could infect mice. The recovery rate became higher as the metacercaria matured, with the peak recovery rate of 90.0 % at the metacercarial age of 9 days. Thereafter the recovery rate decreased to 55.0% at the age of 50 days. As shown by the above results, the whole life cycle of E. hcrtense has been completed in the laboratory. At least 55~58 days were required to maintain one egg-to-egg cycle of E. hortense.

• Journal of agricultural medicine and community health
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• v.37 no.3
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• pp.145-155
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• 2012

Objectives: This study was performed to compare rural residents' perceived health status and life satisfaction according to their general and health related characteristics and to identify factors related to perceived health status and life satisfaction in this population. Methods: Subjects were 1,091 adults aged 20 years or older living in Geochang Gun, South Korea. A survey was conducted from June 28 to August 25, 2009. We used the health self rating scale by Lawton et al. (1982) and the overall life satisfaction scale by Wrosch et al. (2000). The collected data were analyzed using SPSS WIN 18.0. Result: Sex, age, education, spouse, medical diagnosis, currently taking medication, main health maintenance behavior, alcohol consumption, frequency of alcohol consumption, exercise, family harmony, and friend relationships were significantly related to perceived health status. Age, education, spouse, main health maintenance behavior, smoking, exercise, family harmony, and friend relationships were significantly related to life satisfaction. Further, 29.3% of the variance in perceived health status could be explained by medical diagnosis, exercise, family harmony, education, currently taking medication, and friend relationships, while 11.1% of the variance in life satisfaction could be explained by family harmony, perceived health status, main health maintenance behavior, and friend relationships. Conclusion: Health management programs must be designed so as to incorporate the general and health related characteristics of rural residents if they aim to improve the perceived health status and life satisfaction in that population.

• Journal of Music and Human Behavior
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• v.14 no.2
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• pp.71-90
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• 2017

The purpose of this study was to compare immediate differences in fatigue and motor performance during instrumental playing in patients with chronic stroke depending on whether singing task was concurrently presented. A total of 12 patients with chronic stroke were recruited from community and daycare centers for older adults in Seoul. Six subjects were randomly assigned to the experimental group and six to the comparison group. The experimental group was asked to sing while playing the electronic drum, and the comparison group only played the drum. The results of this study showed that statistically significant differences in perceived fatigue and exertion were found between the two groups, while no significant group differences were found in level of engagement in playing or force of tapping during drum playing. This study supports the inclusion of a singing task in instrument playing rehabilitation to effectively decrease perceived fatigue and level of intensity of exercises, although this may not lead to immediate changes in motor function or level of target exercises. The results indicate that singing while instrument playing may help stroke patients shift their attention from the executed motor movements to singing and alleviate the attentional and emotional load from intense movements. This study presents implications for how to select and pattern target movements in music therapy intervention for better motor outcomes.

• Journal of Trauma and Injury
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• v.26 no.3
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• pp.190-197
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• 2013

Purpose: Trauma is one of the major cause of death in Korea. This study focused on the survival rate and the neurologic outcome for patients with traumatic cardiac arrest (CA) at one emergency center. Methods: We retrospectively reviewed the medical records of patients with traumatic CA who were seen at a regional emergency medical center from January 2010 to December 2011. From among major trauma patients at that medical center, adults older than 18 years of age who had CA were included in this study. CA included out-of-hospital CA with arrival at the Emergency Department (ED) within three hours and in-hospital CA. We checked the survival rate and the neurologic outcome. Results: A total of 61 patients were analyzed: 32 patients had return of spontaneous circulation (ROSC), 6 patients survived to discharge (survival rate: 9.84%), and 4 were still alive 90 days after discharge. The Cerebral performance category (CPC) scores at 6 months after discharge showed 1 good and 5 poor in neurologic outcomes. Factors such as initial rhythm of CA, part with major injury, Revised Trauma Score (RTS) and pH, were significant for ROSC, survival, and neurologic outcome in patients with traumatic CA. Conclusion: In this study, patients who had traumatic CA showed a 9.84% survival rate and a 1.64% good neurologic outcome. The results are poorer than those for CA caused by disease. Multi-center, prospective studies are needed.