• 사회복지연구
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• 제44권3호
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• pp.421-450
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• 2013

본 연구의 목적은 급여제한 사전통지제도가 건강보험료 체납자의 체납보험료 자진납부에 미치는 영향을 실증적으로 파악하는 것이다. 본 연구에서는 건강보험공단의 전산자료부터 2010년 1월 21일에 실시된 제 8차 급여제한 사전통지 대상자 155만 명에 관한 자료를 표본으로 추출한 다음 표본을 체납자집단(사전통지 도달, 사전통지 미도달)과 비체납자집단(비대상 체납자, 차상위)로 분류하고 각 집단으로부터 체납자 규모의 10%에 해당하는 15만 명씩을 최종표본으로 추출하여 분석자료로 사용하였다. 다양한 로지스틱회귀분석모형을 추정한 결과, 급여제한 사전통지제도가 통계적으로 유의한 수준인 체납보험료 납부독려 효과를 가진 것으로 나타났다. 그러나 분석결과의 통계적 유의성과는 별개로 급여제한 사전통지제도의 효과는 매우 제한적인 것으로 나타났다. 연구대상 체납자 중 급여제한 사전통지를 받은 이후 체납보험료의 일부 또는 전부를 납부한 체납자는 직역 차이를 고려하더라도 25% 미만 수준에 불과한 것으로 밝혀졌다. 이처럼 체납보험료 납부율이 저조한 이유는 보험료 체납자 중 상당수가 빈곤으로 인해 보험료 납부능력이 없는 생계형체납자이기 때문이라 판단된다. 이러한 현실을 고려할 때, 건강보험공단이 실시하고 있는 급여제한 사전통지제도나 자진납부기간 운영 등은 일부 체납자에게는 보험료 납부독려 효과가 있으나 대다수의 보험료 체납자들에게는 효과가 없으며 오히려 보험료 체납자의 비용부담을 가중시켜 체납 상황에서 벗어나기 어렵게 만드는 결과를 가져올 수 있다. 본 연구에서는 이러한 연구결과를 바탕으로 급여제한 사전통지제도의 개선을 위한 일련의 정책방안을 제시하였다.

• 품질경영학회지
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• 제36권4호
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• pp.56-64
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• 2008

Achieving sustainable performances is not an easy task in today's challenging environment. Since late 1980's, Baldrige Criteria for performance excellence has helped many organizations align their processes, their people, their resources, and their customers' needs. This study analyzes IT Quality effect on performances using Baldrige Criteria. Previous studies on Baldrige Criteria show the relationship between management quality and firm value.

• 한국식품영양학회지
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• 제13권1호
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• pp.83-87
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• 2000

The effect of commerical bacteriocin(Bc) was studied on some quality changes during fermentation of Kimchi at $25^{\circ}C$. The Bc additon by 1.0, 3.0 and 5.0% was found to be effective in extension of pH decrease to reach the optimal pH of pH 4.0~4.2. Thel effect increased with an increase in bacteriocin concentration. The color values of 'L' and 'b' of the Kimchi liquid increased while 'a' value decreased during fermentation. The hardness also increased until 21 hours and then decreased and a slightly more hardness measured at the late stage of fermentation.

• KIEAE Journal
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• 제8권2호
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• pp.53-58
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• 2008

With architectural technology, a building has been a far dense and close. So the thermal environment of the building has become pleasant, but the quality of indoor air has been degraded. Using synthetic products for construction materials and furniture indoors escalates the concentration of volatile organic compounds(VOCs) at indoor air, threatening the health of the residents. To reduce the concentration of volatile organic compounds at indoor air, many methods are designed, and of late, concern has been increased about the effect of air purification using air purifying plants. Field measurements were performed using Aglaonema brevispathum, Pachira aquatica and Ficus benjamiana, which were verified as air-purifying plants by NASA. The effect of reducing the concentration of air contaminants by plant studied in a full scale mock-up model. The variations of concentration of Benzene, Toluene, Ethylbenzene and Formaldehyde were monitored. In most cases, the effect was excellent in Toluene and formaldehyde in summer.

• 아시안잔디학회지
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• 제13권3호
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• pp.131-138
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• 1999

A synergistic effect of biocontrol agent and chemicals on control of the large patch on turfgrass caused by Rhizoctonia solani AG2-2 was evaluated. Chemicals; mepronil, toclofos-methyl and iprodione inhibited 90∼100% mycelial growth of R. solani AG1 and AG2-2 in vitro. While on the other, the chemicals inhibited only 0∼5%, 18∼46% and 30∼67% of mycelial growth of the antagonists, respectively. In field application, toclofos-methyl was the best to suppress the disease in single application, however, the combination of mepronil and T. viride 41D showed highest disease control effect among combinations of antagonists and chemicals. Effect of the combination of mepronil and T. viride 41D was similar to that of toclofos-methyl and T. viride 41D stage of disease development, but became higher in six week late. Results indicated that the combined application of selected antagonistic agent and chemical increased control efficasy of turgrass large patch.

• Management Science and Financial Engineering
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• 제17권1호
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• pp.1-18
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• 2011

The present study provides a theoretical investigation on pioneering advantage based on reference dependence and loss aversion effect under prospect theory (Kahneman and Tversky, 1979). Behavioral explanations for pioneering advantage are provided from two different perspectives: one based on the prototypicality and the other on the utility uncertainty of the option. A pioneer brand creates the product category and makes a strong impression in customers' mind, and thus becomes the most representative or prototypical option of the category. In addition, the pioneer brand becomes the first option to be experienced by the majority of consumers in the product category, thus has the lowest level of utility uncertainty compared with the late movers. This study integrates the previous accounts for pioneering advantage by showing that consumers have higher preferences for the most prototypical and the least uncertain option based on loss aversion and reference dependence effect. This study suggests that firms should carefully analyze the consumers' loss aversion and perceived uncertainty and prototypicality of their products in order to develop effective market entry strategies.

• 한국연초학회지
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• 제11권1호
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• pp.19-25
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• 1989

Effect of removal time of mulched polyethylene film on the chlorine content of toP soil and on the chlorine absorption by burley tobacco Plants was investigated under the field condition in 1986 and 1987. Treatment consisted of 4 removal times (from 30 to 75 days after transplanting with IS days interval) and control (no removal). The chlorine content of top Boll at 15 days after removal of mulched polyethylene film(MPF) lowered temporarily, and the decrement of chlorine content of top soil was closely related to the sum of rainfalls after removal of MPF. The chlorine was accumulated much in upper leaves when the MPF being removed early, while the chlorine was accumulated much in lower loaves when the MPF being removed late, relatively. However, the removal of MPF had no effect on the chlorine content of whole leaf. The yield decreased with removal of MPF during growing period.

• Asia pacific journal of information systems
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• 제30권4호
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• pp.785-807
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• 2020

The novel Coronavirus disease 2019 (COVID-19) is unprecedentedly changing the world since its outbreak in late 2019. Using the collected the data related to COVID-19 and the social media user data from a mobile application market research agency from January 25 to April 7, this study empirically examines the effect of the number of confirmed COVID-19 cases worldwide, the number news COVID-19, and the enforcement of social distancing measures on the daily active users (DAU) of two social media services - Twitter and Facebook - in South Korea. There are three important findings from the results of econometric analysis. First, the number of confirmed COVID-19 cases worldwide has a negative effect on the DAU of social media. Second, the number of COVID-19 news is negatively associated with the DAU of social media. Finally, the implementation of social distancing measures has no significant effect on the DAU of the social media. Theoretical implications and managerial guidelines are also discussed.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1999년도 학회창립 10주년 기념 1999년도 가을 학술발표회 논문집
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• pp.275-278
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• 1999

Application of Blast Furnace Slag Powder in concrete as brisk in the world, and study in it is progressing in korea at most recent. When use Blast Furnace Slag Powder to concrete, there are profits that is minigation of hydration heat, increase late strength, increase of chemical resistancy, and superior effect on mobility because of powder single phase is over 4000$\textrm{cm}^2$/g blain is known to experience.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 가을 학술발표회 논문집
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• pp.123-130
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• 1999

This paper presents a study of geotechnical treatment for artesian pressure after extensive investigation was performed on the distribution and characteristics of artesian condition which exists at Yangsan/Mulgeurn site. The result of analysis indicates that the artesian pressure seems to be up to 2.9M above the existing ground surface, originating from the higher ground water recharging sources in the surrounding hills and mountains. There is no harmful effect after the site development since the height of embankment is more than 4M above the existing ground surface.