• 제목/요약/키워드: lagged effects

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정부지출과 소비지출에 의한 소득주도성장 경로 분석 (Analysis of Income-led Growth Path Induced by Government and Consumption Expenditures)

  • 이현재
    • 한국콘텐츠학회논문지
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    • 제20권7호
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    • pp.602-617
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    • 2020
  • 자유시장 경제를 근간으로 한 이윤주도 성장전략의 대안으로 논의되고 있는 소득주도성장 전략은 정부 부문의 적극적인 개입이 필요하므로 정부지출의 효용성이 중요한 요인으로 인식되고 있다. 본 논문에서는 지난 수십 년 동안 분배체계에 의한 소득주도성장 정책을 수행해 온 북유럽과 남미 국가, 그리고 한국을 대상으로 정부지출과 소비지출의 경제적 관계를 규명하고, 이 결과를 바탕으로 소득주도성장 경로를 논의하였다. 지출 국민소득에 의한 구조방정식을 설정하고 일반화된 선형모형(GLMs)에 의해 추정한 실증분석 결과에 의하면, 북유럽 국가와 한국의 경우 정책적 효과가 크지는 않지만, 소득주도성장 정책으로 국민소득을 증가시킬 수 있는 것으로 나타났다. 그러나 남미 국가는 소득주도성장 정책의 운용이 불안정할 뿐만 아니라 정책효과도 나타나지 않는 것으로 분석되었다. 또한, 소득주도성장 정책을 수행하는 과정에서 저소비 계층보다는 중간소비 계층을 활용한 경로가 더욱 효율적인 것으로 나타났다. 결과적으로 소득주도성장 정책은 지속 가능한 성장 전략이라기보다는 보완적 기능을 수행하는 정책으로 활용하는 것이 바람직할 것이다.

각종 소독제가 구강균총에 미치는 영향에 관한 실험적 연구 (EXPERIMENTAL STUDY ON THE EFFECTS OF VARIOUS DISINFECTANTS TO ORAL MICROFLORA)

  • 김준배;백태현;최대경;김성수
    • 대한치과의사협회지
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    • 제22권9호통권184호
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    • pp.793-801
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    • 1984
  • Though oral microgranisms were among the first to be observed by humans, the interest in oral microbiology lagged. When it became apparent that the oral microflora did influence systemic disease of the body, interest was aroused in the nature and kinds of the microgranisms. The risk of infection in dental procedures is due to the abundant flora of the mouth. This hazard can be reduced to some extent by the use of a local disinfectant. The present studies were undertaken to evaluate and compare the various disinfectants which are commonly used in clinics and hospitals. The results were as follows. 1. The bactericidal activity of the disinfectants mainly depends upon the kinds of the agents, not upon the kinds of the microorganisms. 2. In H₂O₂(3%), the bactericidal activity was greatly related to the contact time. So, at least 4 minitues of contract time was required to use it as an oral antiseptic. 3. In ethyl alcohol (70%), Pseudomonas aeruginosa and Streptococcus salivarius surived a little after 15 seconds of contact time, but, no other colony was discovered after more than 15 seconds of contact time in any kins of microorganisms. 4. Merthiolate (0.1%) showed low antibacterial activity, more in Gram-positive organisms and less in Gram-negative organisms. 5. Benzalkonium chloride (0.1%) and povidone-iodine (10%) showed the most excellent results, revealing no surviving organisms only after 14 seconds of contact time.

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Does Today's Parental Intimacy Predict Tomorrow's Peer Interaction in Daily Lives of Korean Adolescents?: A Mediating Role of Daily Self-Evaluation

  • Chung, Grace H.;Yoo, Joan P.;Lee, Sang-Gyun
    • International Journal of Human Ecology
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    • 제16권1호
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    • pp.25-35
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    • 2015
  • The primary purpose of this study was to examine to what extent adolescents' daily self-evaluation mediates the effect of experiencing intimacy in parent-adolescent interactions on positive peer interactions the next day, even after controlling for gender and grade level. We employed a daily diary method for seven days in a sample of 452 Korean adolescents, collecting checklist data at the end of each day. Data were analyzed by using hierarchical linear modeling. According to moderated multilevel mediation analyses, the variance of self-evaluation explained 83% of the variance in the lagged effect of parental intimacy on the next day peer interaction even after the upper-level effects of gender and grade level were accounted for. Forth graders were more likely than 7th graders to have a more positive view of themselves when they experienced parental intimacy the previous day. Girls were less likely to experience positive peer interactions when they perceived less intimacy with their parents the day before. Results suggested that it would be most effective for peer relationship programs to teach parents and adolescents how to experience intimacy in their daily interactions, particularly in ways that help adolescents to think more positively about themselves. It would be helpful for parents to learn about various ways to compliment and encourage the adolescent child in everyday conversations. Lastly, findings in grade level differences also suggest that these programs might be especially effective for 4th graders more than 7th graders.

17세기 네덜란드 델프트 학파 회화에 나타난 동양풍 연구 (A Study on Orientalism in the Paintings of Delft School in 17th Century Netherlands)

  • 김명은;배수정
    • 복식
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    • 제65권8호
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    • pp.136-150
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    • 2015
  • The purpose of this thesis is to elucidate the exchange between the East and the West during the 17th century through analyzing the oriental influences described in paintings in Delft school, a trade port of East India Company. The scope of this study focused on the 37 pieces of works by Johannes Vermeer and 31 pieces of the paintings by Pieter de Hooch, which are all the existing work, as analysis targets. The resources of this study were from previous papers about the history of costumes, paintings and culture, Internet sources and other qualitatively analyzed articles. The items that the study looked into were Delft porcelains and Delft tiles, Turkey carpets, costumes and accessories pearl earrings and headdresses. The study looked into oriental factors observed in each of these items, and analyzed them. In terms of oriental factors that are frequently observed in paintings, porcelains (100%), Deft tiles (100%), pearl earrings (100%) and (most) carpets (92.3%) turned out to have oriental nature, but this was not the case with head dresses (7.7%) and clothing (0.3%). These results happen to coincide with the previous investigation in that the oriental factor was reflected in the culture first, while the effects on costumes significantly lagged behind. This progress in cultural exchange can be seen through the noted use of Chinoiserie, a technique that is representative of the Chinese culture, in the 18th century. Through Japonism, the influence of Japanese culture into Europe was introduced, in detail, in 19th century. These results suggest that there are sufficient amount of sources that could be used to study the effect of orientalism to the Western culture. This study intends to look at how the oriental culture affected those of Europe by researching the Delft school of Netherlands during the 17th century.

강우량과 지하 수위를 이용한 지하수 함양특성 분석 (Analysis of Groundwater Recharge Characteristics Using Relationship between Rainfall and Groundwater Level)

  • 이동률;구호본
    • 한국수자원학회논문집
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    • 제33권1호
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    • pp.51-59
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    • 2000
  • 시계열모형과 시차분포모형을 결합한 동적모형을 이용하여 강우량과 지하수위의 관계를 파악하였다. 시차에 따른 현재 및 과거 강우량과 과거 지하수위를 독립변수로 하여 동적모형을 구성하였다. 지하수위에 미치는 시차에 다른 강우량의 영향을 Almon 다항식으로 분포시켜 시차분포모형의 매개변수를 추정하였다. IHP 대표유역의 방림과 탄부의 지하수위관측소에서 적용된 동적모형은 강우량에 따른 지하수위를 매우 잘 재현해 주고 있으며, 지하 수위의 예측에도 이용할 수 있음을 확인하였다. 또한 모형의 매개변수는 대수층의 지질특성을 반영하고 있다. 지하수위는 1일전 강우량과 가장 큰 연관성이 있으며, 방림의 경우 18mm/일, 탄부의 경우 30mm/일 이하의 강우량에서는 지하수위의 변동에 큰 영향이 없었다.

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실질임금의 경기변동상 변화패턴과 임금곡선 (Cyclical Patterns of Real Wages and the Wage Curve)

  • 신동균;전병유
    • 노동경제논집
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    • 제25권2호
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    • pp.1-32
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    • 2002
  • 본 연구에서는 경기변동에 따라 그리고 지역에 따라 달라지는 실업률에 임금이 얼마나 유연하게 반응하는가를 분석한다. 분석의 주된 결과는 다음과 같다. 첫째, 최근의 패널데이터에 근거한 많은 외국의 연구 결과와 마찬가지로 실질임금의 경기순응성(procyclicality)은 매우 크게 추정되었다. 실업률이 1퍼센티지 포인트 하락할 때 실질임금률은 약 3.25% 상승하는 것으로 나타났다. 또한 실질임금의 경기순응성은 여성보다는 남성에게 있어서 더 크게 나타났다. 둘째, Blanchflower and Oswald(1990, 1994, 1995)가 발견한 임금곡선(wage curve)이 우리나라에서도 존재하는 것으로 나타났다. 그러나 그 탄력성의 절대값은 0.1보다는 작게 나타났다. 또한 실질임금률과 지역실업률의 관계는 영구적인 부분(permanent component)에 있어서나 일시적인 부분(transitory element)에 있어서나 부(-)의 상관관계가 있는 것으로 나타났다. 셋째, 본 연구에서 가장 선호하는 모형인 지역실업률과 총실업률을 동시에 포함시킨 임금함수의 추정에서, 임금은 주로 총실업률에 의해 결정되며 지역 실업률의 효과는 미미한 것으로 나타났다. 이는 임금이 일차적으로는 지역노동시장 여건에 의해 결정된다는 Blanchflower and Oswald(1994)의 주장이 적어도 우리나라 노동시장에서는 성립하지 않음을 의미한다. 또한 우리나라에서는 총실업률이든 지역실업률이든 시간지연효과는 거의 없는 것으로 나타났다.

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교각건설로 인한 나로도 협수로 부근해역에서의 조류변화 수치모형 실험 (Numerical Model Experiments on the Tidal Current Variations Due to the Bridge Piers Construction near the Straits of Narodo Islands)

  • 이문옥
    • 한국수산과학회지
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    • 제27권1호
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    • pp.47-58
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    • 1994
  • Field observation and numerical experiments with a two-dimensional depth-integrated model were undertaken in order to investigate some of the effects on the flow structure resulting from the construction of a bridge connecting Kohung Peninsula and the Narodo Islands on the southern coast of Korea. Tidal currents passing through the straits between the Narodo Islands showed that, although the phase lagged one hour behind that passing through the strait between Kohung Peninsula and Naenarodo Island, it still kept strong flows of more than 80cm/sec near the bottom. The seawater temperature and salinity within the study area seemed to be higher southward but uniform vertically. The results of the drogue experiments in the straits between the Narodo Islands showed that the drogues moved northward of Sayangdo in the early part of the flood tide, but southward in the late part of the flood tide and finally stopped a mile from the east coast of Surakdo. On the other hand, the numerical computation showed that the flow structures after construction of the bridge piers were basically in line with those before construction of the bridge piers, except for the slight variations of velocities in the vicinity of the bridge piers. A large scale clockwise circulation has been confirmed in the south area of Namsungri of Kohung Peninsula from the computational results of tide-induced residual currents. Referring to these computational results, the impact category on the flow structures due to the bridge piers construction has been estimated to be within around 2km. The results were in good agreement with the field observations.

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통합된 사회인지진로이론을 적용한 장애인 근로자의 주관적 안녕감 예측 모형 (Predicting Subjective Well-being of Workers With Disabilities Using Integrated Social Cognitive Career Theory)

  • 김도희
    • 디지털융복합연구
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    • 제20권2호
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    • pp.431-446
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    • 2022
  • 본 연구는 장애인 근로자의 주관적 안념감을 예측하고, 개선 방안을 모색하기 위하여 통합된 사회인지진로이론의 적용 가능성을 조사하였다. 연구 참여자는 2016년부터 2018년까지 장애인 고용패널조사에 참여한 근로자 중에서 3년 동안 계속 근로중인 만 18세 이상의 성인 952명이다. SPSS와 AMOS 프로그램을 사용하여 직업 만족과 삶의 만족의 종단적인 관계에 대한 교차지연 패널 모형을 분석하고, 장애수용이 직업적 자기효능감, 직업 만족, 삶의 만족에 영향을 미치는 직접효과와 직업적 자기효능감을 거쳐서 직업 만족에 영향을 미치는 간접효과의 유의성을 검토하였다. 연구결과, 장애수용은 직업적 자기효능감과 직업 만족 및 삶의 만족에 유의한 정적 영향을 미치는 것으로 나타났으며 직업적 자기효능감은 직업 만족과 장애수용의 관계를 부분 매개하는 것으로 나타났다. 아울러 장애수용과 직업 만족 간의 자기회기 효과와 교차지연 효과 모두 유의한 것으로 나타났다. 이는 장애수용과 직업적 자기효능감이 장애인 임금근로자의 주관적 안녕감을 높이기 위한 중요한 지표로 고려될 수 있음을 시사한다.

Investigation of seismic response of long-span bridges under spatially varying ground motions

  • Aziz Hosseinnezhad;Amin Gholizad
    • Earthquakes and Structures
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    • 제26권5호
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    • pp.401-416
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    • 2024
  • Long-span structures, such as bridges, can experience different seismic excitations at the supports due to spatially variability of ground motion. Regarding current bridge designing codes, it is just EC 2008 that suggested some regulations to consider it and in the other codes almost ignored while based on some previous studies it is found that the effect of mentioned issue could not be neglected. The current study aimed to perform a comprehensive study about the effect of spatially varying ground motions on the dynamic response of a reinforced concrete bridge under asynchronous input motions considering soil-structure interactions. The correlated ground motions were generated by an introduced method that contains all spatially varying components, and imposed on the supports of the finite element model under different load scenarios. Then the obtained results from uniform and non-uniform excitations were compared to each other. In addition, the effect of soil-structure interactions involved and the corresponding results compared to the previous results. Also, to better understand the seismic response of the bridge, the responses caused by pseudo-static components decompose from the total response. Finally, an incremental dynamic analysis was performed to survey the non-linear behavior of the bridge under assumed load scenarios. The outcomes revealed that the local site condition plays an important role and strongly amplifies the responses. Furthermore, it was found that a combination of wave-passage and strong incoherency severely affected the responses of the structure. Moreover, it has been found that the pseudo-static component's contribution increase with increasing incoherent parameters. In addition, regarding the soil condition was considered for the studied bridge, it was found that a combination of spatially varying ground motions and soil-structure interactions effects could make a very destructive scenarios like, pounding and unseating.

Study on Genetic Evaluation for Linear Type Traits in Holstein Cows

  • Lee, Deukhwan;Oh, Sang;Whitley, Niki C.
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권1호
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    • pp.1-6
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    • 2010
  • The objectives of this study were to i) investigate genetic performance for linear type traits of individual Holstein dairy cows, especially focusing on comparative traits, and to estimate genetic variances for these traits using actual data, and ii) compare genetic performance and improvement of progeny by birth country of the cows. Linear type traits defined with five comparative traits on this study were general stature composite (GSC), dairy capacity composite (DCC), body size composite (BSC), foot and leg composite (FLC), and udder composite (UDC). These traits were scored from 1 to 6 with 1 = poor, 2 = fair, 3 = good, 4 = good plus, 5 = very good and 6 = excellent. Final scores (FS) were also included in this study. Data used was collected from the years 2000 to 2004 by the Korea Animal Improvement Association (KAIA). Only data of more than five tested cows by herd appraisal date and by sires having more than ten daughters were included to increase the reliability of the data analyses. A total of 30,204 records of the selected traits, which was collected from 26,701 individuals having pedigree information were used. Herd appraisal date, year of age, lactation stage (grouped by month), and time lagged for milking (in hours) were assumed as fixed effects on the model. Animal additive genetic effects considering pedigree relationship and residual errors were assumed with random effects. Year of age at appraisal date was classified from one to nine years of age, assigning the value of nine years of age for animals that were greater than or equal to nine years of age. From our results, the estimate for heritability was 0.463, 0.346, 0.473, 0.290, and 0.430 on GSC, DCC, BSC, FLC and UDC, respectively. The estimate for FS heritability was 0.539. The greatest breeding values for GSC were estimated for Canada, with the breeding values for American lines increasing for 10 years starting in 1989 but tending to decrease after that until 2004. For DCC, the breeding values for American and Canadian lines showed similar patterns until 1999, after which the breeding values for the American lines declined sharply. For BSC, data from Korea, Canada and the USA followed similar trends overall except when the breeding values of the American lines decreased starting in 1999. Overall, the methods used to evaluate genetic performance in this study were acceptable and allowed for the discovery of differences by country of genetic origin, likely due in part to the American use of selection indexes based primarily on milk yield traits until methods for evaluating other traits began to emerge.