• Restorative Dentistry and Endodontics
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• 제23권1호
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• pp.223-235
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• 1998

The recognition of the esthetics as well as their function of the teeth in the dental field is growing. Evaluating the esthetics of a tooth concerns shape, texture, and color. And among these, color has been the most difficult element to make natural expression. Color is a very subjective element affected by many different factor like light source, object, observer. Numerous efforts to quantifying color has been made. Currently the use of colorimeter and spectrophotometercolor that the color measuring device has been suggested. In this study, the normal range of the tooth color in canines, lateral incisors and central incisors for Koreans was evaluated with a modified spectrophotometer for intraoral use. The color differences in terms of teeth positions, age and area within the tooth was evaluated and comparatively analyzed. Results were as follow ; 1. In all age groups, the central incisors are most bright and least yellowish opposit to the canines are most dark and yellowish. The central incisors and lateral incisors showed the similar color patterns. 2. In the comparison between gender, it showed that in the 10' s group male have more yellowish, the 20's female have lighter and more redness, the 30's indicated more redness in female and in the 40's the lightness is more in female. 3. With aging, there was no significant change in $L^*$ and $a^*$ coordinates but a shift was in $b^*$ to yellowish in the 30' sand 40's in central incisors. Lateral incisors and canines showed a lighter and more yellowish tooth color with an irregular change of color coordinate in $a^*$. 4. In all teeth the middle and cervical portion showed close correlation with over 0.7(0.05>p) but color ($a^*$, $b^*$) showed higher correlation than lightness($L^*$). 5. It has been shown that through the regression test the cervical color could be calculated by the middle color value.

• 산경연구논집
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• 제9권1호
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• pp.67-76
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• 2018

Purpose - With the worldwide aging problem and the development of globalization, customers prefer to seek affordable medical services with the higher quality overseas. This new trend has urged some destination countries to improve their services for the more competitive advantages over other countries. Literature research indicate that medical quality and cost may be the key factors influencing global patients' decisions. In the international environment, however, medical tourism destinations are selected due to cultural similarity between the hosting country and the customers' own country. The more similarity perceived between the two countries leads foreign patients to choose the considering country as the destination for medical tourism. However, little research has been conducted on this topic. Thus, we empirically investigate how cultural similarity influences Chinese medical customers' choice of the destinations. We also consider the factors related to medical competency and travel attribute which might affect customers' decisions along with some moderating roles of disease types. Research design, data, and methodology - We proposed a research model in order to confirm the relations among different variables of cultural similarity, medical competency, travel attractiveness, disease types, and destination choice. The questionnaire survey is processed in the more economically developed regions of China such as Beijing, Shanghai, and Jiangsu. Conditional logit regression is applied to analyze the data of 881. Results - Results indicate that cultural similarity is the important predictor of Chinese customers' decision to select a medical country. However, the effects of cultural similarity vary according to the disease types. We also find that medical competency and travel attractiveness influence their decisions with the moderating role of disease types. Conclusions - Cultural similarity is the important factor that influences Chinese potential medical tourists' decisions to select a destination. Marketing managers should consider the effects of cultural similarity when developing strategies for attracting Chinese medical tourists. Since medical competency and travel attractiveness are still the critical key elements for them to evaluate the destination countries, it is necessary to continuously improve medical service quality and facilities. The results also recommend that medical managers should sharpen their marketing strategies by segmenting Chinese potential customers in terms of disease types.

• 한국건설관리학회논문집
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• 제20권6호
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• pp.132-141
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• 2019

1990년대 한국의 건설 시장은 GDP대비 20%를 상회하며 계속해서 성장해 왔다. 2015년에는 30년 이상의 노후 공동주택이 403만호에 이르렀고, 2019년 현재까지 계속해서 증가하고 있다. 특히 공공임대 주택의 비율은 한국 전체 노후공동주택의 90.6%를 차지한다. 리모델링 및 재건축 등 건설사업의 타당성 검토 전에 활용이 가능한 사업유형 분류기준을 가격영향요인분석과 주택 건설 관련제도의 분석을 통해 체크리스트를 제시하였다. 공공임대주택의 가격영향요인 32개와 주택건설제도 기반 20개 지표를 사례적용 한 결과 대상단지는 재건축사업이 적합한 것으로 판단되었고, 56개 단지에 확대 적용해본결과 22개단지가 리모델링이 적합한 단지로 판단되었다. 본 연구는 국내 임대주택 건설환경과 삶의 질 향상을 위한 노후공동주택 성능향상에 활용가능하고, 특수성을 시사하는 것에 충분한 의미가 있다. 향후 연구에서는 체크리스트의 정량화를 위한 연구가 필요하다.

• 한국인구학
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• 제9권2호
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• pp.53-66
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• 1986

This study was carried out to determine the mortality level and it's related demographic factors in Korea since 1942. In order to clarify the changes in structure of mortality and the causes of death, the indices such as Crude Death Rate(CDR) or Life Expectancy at Birth were used. The author examined the mortality levels and major causes of death and performed the relevant demographic analysis. The followings are the summary of this study: 1. The CDR declined rapidly till 1960's. Such improvement slowed down from 1960's to mid 1970's and stabilized afterwards. It was due to the change of age composition, namely, the increase of aging population. 2. The Life Expectancy at Birth increased rapidly till mid 1960's. But elongation of the Life Expectancy slowed down after then. Especially in female, it slowed down more. 3. Changing patterns of major causes of death summarize that, till 1960's infectious diseases were major causes of death, but recently non-infectious diseases like chronic degenerative diseases became more prevalent. 4. The elongation of Life Expectancy at Birth till mid 1960's was mainly resulted by $_4{q}_1$. But the major contributing factor of the improvement in Life Expectancy at Birth in female is he reduction of $_$\infty${q}_{50}$ recently. In male, the improvement in Life Expectancy at Birth is due to the reduction of $_1{q}_0$. recently. 5. The age-sex-specific mortality rates revealed that $_n{q}_x$ declined in common throughout the period, even though there exists some variability of their ranges as age changes. Consequently, this study seems to suggest that the demographic transition in Korea occurred between late 1960's and early 1970's. In other words, the rapid change before late 1960's was eased in early 1970's. The slow change in this period caused a stabilizing pattern. Therefore, the population change is expected to be stabilized continuously.

• 대한지역사회영양학회지
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• 제26권5호
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• pp.350-362
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• 2021

Objectives: This study investigated an association between sugar-sweetened beverage (SSB) intake and the dietary quality of adults in Deagu, Korea. Methods: A questionnaire survey was conducted in 1,022 adults aged 19 ~ 49 years (502 men and 520 women) in the Deagu area of Korea. Daily intake of SSB was obtained by the food frequency questionnaire, and the dietary quality was assessed using the nutrition quotient (NQ) for Korean adults. Multiple logistic regression analysis was used to estimate the association between dietary quality and daily intake of SSB in adults. Results: Daily intake of SSB was 463.6 mL/d for total subjects, and the highest intakes were sweetened coffees (192.7 mL/d), followed by carbonated drinks (77.1 mL/d). Higher intake of SSB was associated with higher intake frequency of fast food or sweet and greasy bread, processed beverage, ramyon, eating out or delivery food and night snack, and also associated with lower frequency of water, breakfast intake and nutrition label checking in men or women. Men and women who had a higher intake SSB had significantly greater odds for being in the low grade of NQ (P for trend = 0.0006 for men, P for trend = 0.0007 for women), especially in the moderation factor (P for trend < 0.0001 for men and women). Conclusions: This study showed that high SSB intake was significantly associated with low dietary quality among adults. These study results suggest that nutrition education programs and guidelines should be provided to adults for improving their consumption of SSB and related diets.

• 한국콘텐츠학회논문지
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• 제21권9호
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• pp.516-527
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• 2021

노인복지관은 노인들의 다양한 복지 욕구에 따른 서비스를 제공하여 지역사회 노인복지 증진에 기여하고 있다. 고령화 및 베이비부머의 고령층 진입으로 인해 노인들은 동일한 욕구를 가진 단일한 집단이 아닌 다양성을 가진 집단으로 인식되고 있다. 따라서 수요자 관점에서 노인들이 복지관을 이용하는 요인을 파악하려는 노력이 필요하다. 도시지역 노인의 복지관 이용 요인을 확인한 결과, 성별, 나이, 학력, 직업, 경제상태, 사회계층, 친구 수, 사회활동 참여 수, 질환 수, 우울감이 유의미한 것으로 확인되었다. 즉, 남성보다 여성이, 나이가 많을수록, 고학력자가, 직업이 없는 노인이, 경제상태가 나쁜 노인이, 낮은 사회계층에 속하는 노인이, 친구가 많을수록, 참여하는 사회활동이 많을수록, 질환이 많을수록, 우울감이 높을수록 복지관을 이용할 확률이 높아졌다. 학력수준이 높은, 친구가 많은, 사회참여에 적극적인 노인들과 나이가 많은, 경제적으로 어려운, 건강상태가 나쁜 노인 등 이질적인 노인집단이 복지관을 이용하는 것으로 나타났다. 이러한 연구결과를 바탕으로 노인복지서비스의 질적 제고를 위한 정책적·실천적 제언을 하였다.

• 한국노년학
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• 제38권4호
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• pp.1107-1125
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• 2018

본 연구는 치매환자와 동거하는 가족의 자살생각 위험요인과 보호요인에 따라 유형화를 하고, 각 유형집단이 자살생각에 미치는 영향을 분석하여 자살예방을 위한 실증적 기초 자료를 제시하는데 목적이 있다. 본 연구는 2013년 지역사회건강조사를 활용하여 치매환자와 동거하고 있는 가족 2,715명의 자료를 분석대상으로 하였고, 잠재계층모형분석과 이항로지스틱분석을 실시하였다. 주요분석내용은 (1) 자살생각의 위험요인과 보호요인의 유형화 (2) 유형화된 집단이 자살생각에 미치는 영향을 규명하고자 한다. 총24개의 자살생각 위험요인과 보호요인의 지표를 활용하여 잠재적 집단분석을 실시하여 '고위험-저보호요인'집단, '고위험-고보호요인'집단, '저위험-고보호요인'집단, '저위험-저보호요인'집단으로 유형화하였다. 분석 결과, '고위험-저보호요인'집단인 경우 자살생각이 가장 높았고, 유의하게 자살생각을 가지는 것으로 나타났다. 결과에 기반한 실천적 함의와 과제를 제시하였다.

• 보건행정학회지
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• 제28권4호
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• pp.352-359
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• 2018

Background: The purpose of this study is to propose an analysis of trends and characteristics of high-cost patients who take over 40% of total national health insurance medical expenses. Methods: It has been analyzed the tendency of high-cost patients by open data based on the medical history information of 1 million people among national health insurance subscriber from 2002 to 2015. To conduct detailed study of characteristics of high-cost patients, multiple regression has been performed by sex, age, residence, main provider, and admission status based on the top 5% group. Results: The amount of medical expenses and the number of high-cost patients have gradually increased in decades. The number of high-cost patients for Korean won (KRW) 5,000,000 category has increased by 7.6 times, KRW 10,000,000 category has increased by 14.1 times in comparing of year 2002 and 2015. Top 5% medical expenses have increased by 4.6 times. In consideration of the characteristics of patients, the incidence of high medical expenses has been higher in female patients than male ones, the older patients than in the younger. Patients residence in Gyeonsang or Jeonla province have had a high incidence of medical expenses than other area. The disease including dementia, cerebral infarction, and cerebrovascular disease for high-cost patients has been also increased. Conclusion: The major increase factor for high medical expenses is the aging of population. The elderly population receiving inpatient care residing in the province that increases high medical costs have to management. There is an urgent need to develop a mechanism for predicting and managing the cost of high-cost medical expenses for patients who have a heavy financial burden.

• 농촌계획
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• 제25권1호
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• pp.21-38
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• 2019

Korean agricultural industry has weakened as demand for domestic agricultural products has declined due to accelerating market liberalization, aging and shrinking of rural population, and stagnating rural households' incomes. On the other hand, as the forth industrial revolution unfolds in earnest, tremendous changes are expected, and those changes won't be confined to certain industries but would shaken the world we know of entirely. Smart farm, which is one example of the fourth industrial revolution, is increasingly being recognized as a new growth engine for the future as smart farm and the science and technology behind it, not the size of arable land, will determine competitiveness of the agricultural industry and drive agricultural productivity and managerial efficiency. In consideration that John W. Kingdon's Multiple Streams Framework has recently been presented as an important theoretical model in the policy field, this study analyzed problem stream, policy stream, and political stream in the process of forming the smart farm policy, and looked into what role the government played as policy entrepreneur in policy window. The smart farm policy was put on policy agenda by the government and was approved when the government announced the Smart Farm Plan together with relevant ministries at the 5th Economy-Related Ministers' Meeting held in April 2018. This suggests that change of the government is the most critical factor in political stream, and explicitly indicates the importance of politics in formation of an agricultural policy. In addition, actual outcome of the policy and how policy alternatives that will enhance people's understanding will support it seem to be the key to success. It also shows that it is important that policy alternatives be determined based on sufficient discussion amongst stakeholders.

• 한국콘텐츠학회논문지
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• 제18권11호
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• pp.571-580
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• 2018

이 연구는 기업 및 사업체 인사담당자의 경험적 사실에 주목하여 60세 이상 고령근로자의 생산성을 평가하고 고령근로자의 생산성 향상에 직 간접적인 영향을 미치는 요인을 분석하는데 목적을 두었다. 분석 결과, 고령근로자의 생산성 평가에 긍정적인 영향을 미치는 요인은 업무에 대한 태도, 전문성으로 나타났다. 노화에 따른 신체적 역량 저하는 고령근로자의 생산성 평가에 부정적인 영향을 미치는 핵심 요인으로 인식하고 있었으며, 신체적 역량을 고려한 업무재배치 및 직무재설계, 안전교육, 근로자간의 공감대 형성이 고령근로자의 업무성과를 향상시키는데 긍정적인 요인으로 작용하고 있는 것으로 나타났다. 이러한 연구결과는 고령근로자의 축적된 경력 및 전문성을 효율적으로 활용할 수 있는 업무배치와 신체적 역량을 보완할 수 있는 근무환경 조성이 생산성 향상 측면에서 매우 중요한 요소임을 시사한다.