• KDI Journal of Economic Policy
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• v.22 no.1_2
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• pp.139-192
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• 2000

1997년 외환위기 이후 우리나라의 정부부채는 급속히 증가하여 왔다. 일반적으로 재정적자 및 정부부채의 증가는 여러 가지 거시경제적 부작용을 초래할 것으로 예상된다. 본 연구의 목적은 그중에서 특히 재정악화의 결과 물가상승이 유발될 가능성을 실증적으로 살펴보는 것이다. 정부의 예산제약을 고려하면 재정악화는 궁극적으로 미래의 재정수지 흑자나 물가상승을 통하여 해소될 수 밖에 없다. 재정주의적 물가결정이론은 바로 이러한 점에 착안하여 재정이 물가의 결정에 대항 중요한 역할을 할 수 있음을 강조한다. 즉, 미래의 정부기초수지에 대한 예상이 일정하다면 물가는 궁극적으로 통화가 아니라 재정에 의하여 결정된다는 것이다. 그러나 반대로 미래의 통화정책에 대한 예상이 일정하다면 현재의 재정적자는 미래의 재정흑자를 유발할 뿐이며 물가에는 영향을 미치지 못할 것이다. 따라서 실제로 재정악화가 얼마나 물가상승을 유발할 것인가는 실증적으로 결정될 수밖에 없다. 기존의 OECD 국가들에 대한 실증분석에 의하면 재정수지는 통화량이나 물가에 대하여 뚜렷한 영향을 미치지 않는 것으로 나타난다. 그러나 기존의 실증분석들은 대부분 미래의 재정수지에 대한 예상을 제대로 고려하지 않고 있으므로, 이러한 결과가 재정주의적 물가결정이론에 대한 정확한 검정을 제공하는 것이라고 볼 수는 없다. 본 연구에서는 이러한 문제의식하에 선진국과 개도국의 자료를 이용하여 재정주의적 물가결정이론의 타당성을 재검토해보고자 한다. 먼저 선진국에 대해서는 VAR모형의 충격반응(Impules Response)을 이용하여 재정수지에 대한 예상을 직접 고려함으로써 앞서 설명한 편차의 가능성을 줄일 수 있을 것으로 예상된다. 한편 개도국의 경우에는 일반적으로 재정규율이 낮을 것으로 예상되므로 미래의 재정수지에 대한 명시적인 고려가 없이도 재정적자 및 정부부채의 확대가 물가 및 통화량에 미치는 관계가 비교적 용이하게 관찰될 수 있을 것으로 예상할 수 있다. 본 연구의 실증결과에 의하면, 먼저 비교적 재정규율이 강할 것으로 예상되는 OECD 국가들에서는 기존의 실증분석결과와 마찬가지로 정부부채의 증가가 주로 그 이후의 기초수지의 개선을 통하여 보전되며 물가에는 큰 영향을 미치지 않는 것으로 나타난다. 그러나 OECD 국가들 가운데에서도 재정규율이 비교적 약한 나라들에서는 부채 증가 후 기초수지에 뚜렷한 변화가 관찰되지 않으며 따라서 물가가 상승하는 것으로 나타난다. 또한 재정규율이 일반적으로 약한 개도국들에서는 예상대로 부채수준이 높은 국가일수록 물가상승률이 높게 나타난다. 특히 개도국에서 GDP 대비 정부부채가 10%포인트 증가할 경우 물가상승률은 장기적으로 약 1.5~2%포인트 확대되는 것으로 추정된다. 이러한 결과는 정부부채에 일정한 상한이 존재함을 시사하는 것으로서, 대체로 재정주의적 견해와 일치하는 것으로 판단된다. 따라서 우리나라에서도 만일 정부부채의 증가추세가 지속된다면 결국은 일반 국민의 조세부담이 증가하거나 아니면 물가상승이 유발될 수밖에 없을 것이다.

• The Journal of Dong Guk Oriental Medicine
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• v.9
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• pp.51-71
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• 2000

The present experiments were designed to study the influence of WalgookwhanhabBojoongikgitang on immune functions of Balb/c mice under stress condition. WalgookwhanhabBojoongikgitang was orally administered to the mice for 15 days. On the 10th day the mice were immunized with sheep red blood cells (SRBC) and then subjected to electric footshock for 5 days (2 sessions a day, 11 footshocks a 31 min-session). The immune responses to SRBC were determined by means of hemagglutination and BIT cell populations in the spleen were studied by FACS analysis on the 16th day. The results were as follows. 1. After electric footshock, IDlce became sluggish and crowded to one side of the cage. Increased antibody titer for SRBC, increased B cell population, and decreased T cell population in the spleen were also observed. These results confirm that electric footshock caused stress inducing immunological and behavioral changes in Balblc mice. 2. Walgookwhanhab-Bojoongikgitang administration significantly antagonized the effect of electric footshock on the antibody titer for SRBC. As a result, antibody titers for SRBC in the mice treated with Walgookwhanga-Bojoongikgitang were maintained at the similar levels as those of control group mice even after the electric foots hock. 3. Walgookwhanhab-Bojoongikgitang administration also antagonized the effect of electric footshock on the BIT populations in spleen. As a result, Band T populations in the mice treated with Walgookwhanhab-Bojoongikgitang were maintained at the similar levels as in the control group mice even after the electric footshock. Taken together, Walgookwhanhab-Bojoongikgitang seem to help Balb/c mIce to maintain their humoral immune response and immune cell populations at a normal range under the stress conditions, suggesting its possible therapeutic use as a immune function modulator.

• Journal of Korean Academy of Nursing
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• v.30 no.4
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• pp.893-904
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• 2000

The sample of this study consisted of 140 informal caregivers who provided care to the older adults(over 60 years of age) in Great Cleveland, USA. Self-rated questionnaires were utilized to collect information. The purpose of the study was to identify coping strategies most frequently utilized by informal caregivers of older adults and to examine predictors of the caregivers' health responses to the caregiving situation applying Lazarus and Folkman stress model(1984). Stepwise multiple regression was used to identify significant predictors among caregivers' demographic-socio-economic factors, older adult's dependency of activities of daily living(ADLs), caregiver's appraisal to the caregiving situation, and coping strategies. Informal caregivers (N=140) included in the study utilized help-seeking and problem-solving coping strategies more than self-blame and minimization of threat coping strategies. Caregivers' responses to the caregiving situation were observed by caregivers' perceived physical health, depression and life satisfaction. For perceived physical health, threat appraisal, older adult's dependency on ADLs, existential growth coping strategy, and monthly income accounted for 25% of the variance. Caregivers who appraised the caregiving situation as more threatening, reported higher dependency on ADLs, used more existential growth coping strategy, and had higher monthly income reported better physical health. For depression, threat appraisal, stress appraisal, existential growth coping strategy, self-blame coping strategy, and monthly income accounted for 48% of the variance. Caregivers who used more existential growth coping and less self-blame coping, appraised the situation as less threatening, less stressful, and had higher monthly income reported less depression. For life satisfaction, self-blame coping, existential growth coping, monthly income, stress appraisal accounted for 49% of the variance. Caregivers who used more existential growth coping, less self-blame coping, less stress appraisal, lower monthly income reported better life satisfaction. In conclusion, informal caregivers in this study utilized positive coping strategies such as problem-focused, existential growth, help-seeking, rather than negative coping strategies including self-blame. When they utilized positive coping strategies more often, caregivers experienced higher perceived physical health, higher life satisfaction and lower depression. Therefore, nursing intervention which utilized positive coping strategies is needed to enhance informal caregivers to have positive health responses to the caregiving demands.

• Investigative Magnetic Resonance Imaging
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• v.13 no.2
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• pp.127-136
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• 2009

Purpose : Functional magnetic resonance imaging (fMRI) was used to assess the temporal response of neural activation in healthy subjects while they performed the Iowa Gambling Test (IGT), which utilizes decisions involving ambiguity and risk. The IGT was divided into five blocks of 20 trials; analysis showed that activity in the medial prefrontal cortex (mPFC) moves gradually from the dorsal to the ventral mPFC over the course of the IGT. These findings suggest that cognitive division of the mPFC, including the dorsal portion of the anterior cingulated cortex (ACC), plays a major role in ambiguous decision making and that the aspect of the IGT corresponding to risky decision making is associated with significant activity within the corticolimbic network strongly implicated in emotion and reinforcement. Our results also suggest that decisions made under ambiguity and decisions made under risk situations can be further divided into sub-phases based on the neural network involved.

• Archives of design research
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• v.13 no.3
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• pp.153-167
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• 2000

This paper is designed to make a research into the process of the formation and introduction of design management system necessary for the strategic utilization of design at a management love on the part of domestic small business. This paper is limited to the study of the general problems ralated to the design management of the domestic small business companies producing consumer goods. 1 made an examination of the necessity of the introduction of design management and of the necessity of design development in connection with the administrative features of small business, identifying the actual condition of design by the small business and discussing the actual situation of design management and tasks to tackle. lastly, 1 made a suggestion of the process, whose aim lies In the inside establishment of the design management system deemed desirable for the domestic companies. 1 have come to the following conclusions. First, small business should make use of design development so as to keep their competitiveness and to enhance their administrative features. Second,. design can serve as a means for making a speedy response in the companies'differentiation strategies arid strategies for markets with a lot of opportunities. Third, the utilization of design at an administrative love on the part of the small business works in the light of enterprise communications, organizations, business and marketing and so on. Fourth, the majority of small business are weak when it comes to organization, manpower and environment in relation to design. So it is necessary to introduce and construct the design management system. Fifth, the managers of the small business should first of all take a strong interest in and have a renewed understanding of the importance of design. I made a suggestion that the small business should carry out a process constructing the design-management system based on the design organization and manpower, but stopped short of confirming my suggestion in a corroborative way.

• Journal of KIISE:Computer Systems and Theory
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• v.27 no.7
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• pp.650-664
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• 2000

NOW(Network of Workstations) is considered as a platform for running parallel programs by many people. One of the fundamental problems that must be addressed to achieve good performance for parallel programs on NOW is the determination of efficient job scheduling policies. Currently most research on NOW assumes that all the workstations in the NOW have the same processing power. In this paper we consider a NOW in which workstations may have different computing power. We introduce 10 classes of space sharing-based scheduling policies that can be applied to the NOW with heterogeneous computing power. We compare the performance of these scheduling policies by using the simulator which accepts synthetically generated sequential and parallel workloads and generates the response time and waiting time of parallel jobs as performance indices of various scheduling strategies. Through the experiments the case when a parallel program is partitioned heterogeneously in proportion to the computing power of workstations is shown to have better performance than when a parallel program is partitioned into parallel processes of the same size. When the owner returns to the workstation which is executing a parallel process, the policy which just lowers the priority of the parallel process shows better performance than the one which migrates the parallel process to a new idle workstation. Among the policies which use heterogeneous partitioning and process priority lowering, the adaptive policy performed best across the wide range of inter-arrival time of parallel programs but when the load imbalance among parallel processes becomes very high, the modified adaptive policy performed better.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.48 no.6
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• pp.452-459
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• 2003

A new demand for vegetable peanut (Arachis hypogaea L.) in Korea has increased farmers interest in growing vegetable peanut. Compared to grain peanut production, vegetable peanut production enables the growth period to be shortened by 20 or 30 days and farmers to adopt various cropping systems and to return crop residues in the soil. With the purpose of establishing desirable cropping systems for sustainable vegetable peanut production, three field experiments were conducted from 2000 to 2001 at Milyang, the southeastern part of Korea. Main focuses were given into the effect of cropping systems for vegetable peanut production on each crop's yield and soil sustainability. The cropping systems investigated were single vegetable peanut, peanut-radish-green barley, peanut-barley, and peanut-garlic cropping system, with or without crop residue incorporation in the soil. Among the cropping systems investigated for sustainable vegetable peanut production, peanut-only and peanut-radish-green barley cropping systems showed vulnerable to diseases and lodging while peanut-barley and peanut-garlic cropping systems showed higher stability in response to diseases and lodging, consequently leading to higher yield potential of vegetable peanut production. In the peanut-barley cropping system, both barley and peanut residues returned to the soil played an important role in soil improvement as well as in significantly increased grain yield of peanut and barley. A particular notice was taken to the pronounced increase in Trichoderma population and the amount of nitrogen mineralization induced by the returned barley residue. Soil structure, compactness, pH, and fertility were positively influenced by the returned crop residues, which apparently increased sustainability in vegetable peanut production systems.

• Korean Journal of Head & Neck Oncology
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• v.16 no.1
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• pp.33-36
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• 2000

Objectives: Angiocentric T-cell lymphoma of the head and neck is an angiocentric and angiodestructive lymphoreticular proliferative disorder. It has been treated with various treatment modalities, but its prognosis is poor and the treatment modality is controversial. We performed this study to suggest a treatment modality with improved results. Materials and Methods: We studied 40 cases of pathologically confirmed angiocentric T-cell lymphoma from July 1984 to December 1996, 35 cases of which showed complete response after initial treatment. All the patients were divided into two groups according to treatment modality. 15 cases received radiotherapy alone (Group I) and 20 cases received radiotherapy after five cycles of CHOP-Bleo chemotherapy(Group II). We analyzed the subsites of tumor, stage, treatment modality and treatment outcome and causes of failure for each group, and compared the three-year no evidence of disease(NED) between the two groups. Results: The three-year NED of a combined chemoradiotherapy was higher than that of a radiotherapy alone (p=0.0478). The three-year NED according to groups and stage were as follows: Group I=6/15(40.0%), stage IE=5/10(50.0%), stage IIE=1/5(20%), Group II=13/20(65.0%), stage IE=9/13(69.2%), stage IIE=4/7(57.1%). Radiotherapy alone is not well effective for the nasal cavity lymphoma extended to paranasal sinus and the palate. Conclusion: We are unable to provide clear guidelines for treatment, but recommend the initial treatment with oral alkylating agents and steroids followed by radiotherapy for Ann Arbor stage II tumors and stage I of the palate lymphoma and the nasal cavity lymphoma extended to paranasal sinus.

• Journal of Periodontal and Implant Science
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• v.30 no.3
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• pp.661-676
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• 2000

Gingivitis and periodontitis are infectious diseases in that microorganisms are the primary extrinsic cause of the diseases. the occurrence of gingivitis has been associated clearly with the presence of microorganisms at the disease site, and the histologic nature of the tissue involved is indicative of an inflammatory response induced by microorganisms. additional evidence for the microbial etiology of periodontal disease is that numerous antimicrobial agents are effective in reducing plaque accumulation and periodontal diseases. the purpose of this article is to analyze the antimicrobial effects of Pulsatilla koreana. Well-dried Pulsatilla koreana purchased from herbs distributor was ground and extracted into methanol(MeOH), ethylacetate(EtoAc), chlorform($CHCl_3$) and Butyl alcohol(BuOH). we have then applied each solution to the bacteria samples(Bacteroides forsythus, Streptococcus mutans, Streptococcus sanguis, Porphylomonas gingivalis, Actinobacillus actinomycetemcomitans, Eikenella corrodens, Prevotella intermedia, Actinomyces viscosus, Prevotella nigrescens , Rothia dentocariosa, Fusobacterium nucleatum, Pseudomonas aeruginosa, Staphylococcus aureus) collected from several organizations. To conduct susceptibility test(Kirby-Bauer method), plate contained each periodontopathic bacteria is spread extracted into methanol(MeOH), ethylacetate(EtoAc), chlorform($CHCl_3$) and Butyl alcohol(BuOH) and to measure the minimum inhibition concentration(MIC) of the bacteria against the solutions to ultimately determine antimicrobial effects of the solutions, insert bacteria sample into $20{\mu\ell}/{m\ell}$, $10{\mu\ell}/{m\ell}$, $5{\mu\ell}/{m\ell}$, $2.5{\mu\ell}/{m\ell}$ of each solution and control group(not contained solution) 1. Solution extracted into methanol did not show clear zone against all bacteria samples. Only P.nigrescens, S. mutans and S. sanguis in solution extracted into ethylacetate, S. mutans and S. anguis in solutions extracted into chlorform and Butyl alcohol showed clear zone against all bacteria samples. Solution extracted into Butyl alcohol showed clear zone against 13 types of bacteria, excluding P. gingivalis. 2. In Solution extracted into methanol, the bacteria samples grew in the highest concentrated plate, showing minimal variation from control group. 3. In Solution extracted into Butyl alcohol, S. aureus, P. intermedia, E. corrodens, A. actinomycetemcomitans, B. forsythus, P. gingivalis et al. showed decreased growth in the highest concentrated plate. P. auruginosa, R. dentocariosa, A. viscosus, P. nigrescens, S. mutans et al. showed decreased growth at MIC $20{\mu\ell}/{m\ell}$ and S. sanguis showed decreased growth at MIC $10{\mu\ell}/{m\ell}$. 4. By analyzing the MIC level through considering the results from Kirby-Bauer method, Solution extracted into methanol did not reveal any antimicrobial effects and Solution extracted into Butyl alcohol showed the highest antimicrobial effects In conclusion, it can be used the extracts of Pulsatilla koreana as wide spectrum antimicrobial agent.

• Journal of Periodontal and Implant Science
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• v.30 no.3
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• pp.491-504
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• 2000

In clinical therapy, the current goal of dental implants is to enhance quantity and quality of osseointegration. Surface roughness and oxide structure are considered to influence the behavior of adherent cells. The purpose of this study is to evaluate the effect of different surface treatment on cellular response. The attachment and proliferation of osteoblast-like cell on sandblasted, sandblasted and etched, thermal oxidated surfaces have been compared. Sandblasting was done with $Al_2O_3$ particles(grain size of $50{\mu}m$), etching was processed with $NH_4OH$ : $H_2O_2$ : $H_2O(1:1:5)$ at $90^{\circ}C$ for 1 minute. Thermal oxidation was followed sandblasting and etching at $400^{\circ}C$, $600^{\circ}C$, $800^{\circ}C$ for 2 hours. Measurement of surface roughness after the different treatment did not show any differences of Ra value between terated surfaces. Cell attachment and proliferation were increased during experiment period, but no difference was observed. SEM evaluation revealed a similar pattern of osteoblast-like cells, well attached with dendritic extension and producing numerous matrix vesicles on cell surface. The results of this study showed that oxide layer alteration by thermal oxidation did not affect the attachment and proliferation of osteoblast-like cells. This suggests the possibility that the cellular responses are further influenced by surface roughness than titaniun oxide structure.