• 대한물리의학회지
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• 제6권2호
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• pp.189-197
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• 2011

Purpose: Trunk muscle weakness in the children with cerebral palsy can lead to postural and alignment problems, breathing difficulties, and so on. Therefore, children with cerebral palsy can benefit from exercises that strengthen the muscles in their trunks. The purpose of this study was to investigate the effects of trunk muscle strengthening exercise on functional gross movement and balance ability in children with spastic diplegic cerebral palsy. Methods: We used single group repeated measure design in 8 children(four males, four females; aged 6~12 years; mean 8.3 years) with diplegia. The functional gross motor outcome measured by using the GMFM and balance ability of all children was measured by pediatric balance scale. All participants were alternately received trunk strengthening exercise and neurodevelopment treatment for 40 minutes twice per week during 8 weeks. Results: Significant and clinical meaningful improvement in functional gross motor and balance ability were shown. Conclusion: The results indicate that trunk strengthening exercise has a positive effect on both functional gross motor and balance ability in children with spastic diaplegic cerebral palsy.

• 한국도로학회논문집
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• 제15권2호
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• pp.169-181
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• 2013

PURPOSES : This study is to suggest the Influence of road capital to industry and productivity growth in South Korea. METHODS : Based on the literature review, The relevant policy questions addressed in this report are : cost reduction and Scale elasticities of road, effect of road capital stock on demand for labor, capital and materials, marginal effect of road, industry TFP growth decomposition. RESULTS : The marginal benefits of the road capital at the industry level were calculated using the estimated cost elasticities. Demand for the road capital services varies across industries as do the marginal effects. The marginal benefits are positive for the principal industries. This suggests that for these industries the existing stock of road capital may be under supplied. The contribution of road capital to TFP growth is positive in principal industries. The main contribution of road capital is in the manufacturing industries ; the magnitudes of contribution varies among industries. These results indicate that growth in exogenous demand is most important contributor to TFP growth. CONCLUSIONS : The road capital have a significant effect on employment, private capital and demand for materials inputs in all industries. At a given level of output, an increase in road capital lead to variety to demand for all inputs in all industries.

• 한국지반공학회논문집
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• 제16권6호
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• pp.127-139
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• 2000

In the study, an expert system was developed to predict the safety of tunnel and select proper tunnel reinforcement system using fuzzy quantification theory and fuzzy inference rule based on tunnel information database, For this development, many tunnelling sites were investigated and the applied countermeasures were studied after building tunnel database. There will be benefit for the deciding tunnel reinforcement method in the case of poor ground condition. The expert system developed in the study has two main parts, pre-module and post-module. Pre-module is used to decide input items of tunnel information based on the tunnel face mapping information which can be easily obtained in in-situ site. Then, using fuzzy quantification theory II, fuzzy membership function is composed and tunnel safety level is inferred through this membership function. Post-module is used to infer the applicability of each reinforcement methods according to the face level. The result of the predicted reinforcement system level was similar to measured ones. In-situ data were obtained in three tunnel sites including subway tunnel under Han River. Therefore, this system will be helpful to make the mose of in-situ data available and suggest proper applicability of tunnel reinforcement system to development more resonable tunnel support method without dependance of some experienced experts opinions.

• Journal of Korean Biological Nursing Science
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• 제22권1호
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• pp.23-35
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• 2020

Purpose: Compliance in kidney transplant recipients is critical for a positive prognosis. Especially compliance with medications after kidney transplantation is a major health care issue with implications for graft rejection and graft loss. But the definition of compliance in transplantation varies among centers. The purpose of this study was to clarify the concept of compliance in kidney transplant recipients. Methods: A literature search was conducted using RISS, MEDLINE, CINAHL. The concept analysis was guided by the methodology posited by Walker and Avant. Results: In this study, we found the attributes of the concept: 'compliance with immunosuppressive medication', 'compliance with follow-up', 'compliance with early detection of graft rejection and complication', and 'compliance with prevention of complication'. The antecedents of 'compliance in kidney transplant recipients' included 'having a kidney transplant surgery' and 'normal function of transplanted kidney'. The consequences of 'compliance in kidney transplant recipients' included 'affecting the function of the transplanted kidney' and 'affecting the health of kidney transplant recipients. Conclusion: This study may contribute to the development of tools for measuring compliance in kidney transplant recipients, as well as benefit nursing interventions research to increase compliance in kidney transplant recipients.

• Physical Therapy Rehabilitation Science
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• 제2권1호
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• pp.39-43
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• 2013

Objective: The objective of this study is to investigate the effect of treadmill gait trainig on dynamic balance and gait functions in stroke patients. Design: Randomized, double-blind, controlled pilot study. Methods: Four subjects following first stroke participated in this study. They were divided randomly into the treadmill gait trainig group (TM group) (n=2) and the control group (n=2). Subjects in both groups received general training five times per week. Subjects in the TM group practiced an additional treadmill gait trainig program that consisted of 60 minutes, three times per week, during a period of four weeks. Timed up and go test (dynamic balance) and the GAITRite test (gait function) were evaluated before and after the intervention. Results: In dynamic balance (timed up and go test), the TM group (-14.235 sec) showed a greater decrease than the control group (-13.585 sec). In gait functions, the TM group showed a greater increase in gait speed (12.8 cm/s vs. 10.15 cm/s), step-length (5.825 cm vs. 3.735 cm), and stride-length (5.005 cm vs. 1.55 cm) than the control group. Conclusions: The treadmill gait trainig improved dynamic balance and gait functions. Further research is needed in order to confirm the generalization of these findings and to identify which stroke patients might benefit from treadmill gait trainig.

• 한국산업정보학회논문지
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• 제11권2호
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• pp.9-17
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• 2006

차등 인터넷 서비스를 효과적으로 운영하는 접근법에 대한 연구가 최근에 활발히 진행되고 있다. 인터넷 이용자와 공급자(ISP) 각각의 사회적 편익의 변화에 따른 대역폭 시장 참여자들의 관계를 고찰한다. 차별화 된 QoS를 원하는 시간대에 사용하려는 사용자(고객)에게 더 높은 요금지불을 감내해야 한다는 것은 기본적인 경제관점이다 대역폭 리소스의 과다사용, 적절사용, 과소사용에 따른 차등화 된 요금을 적용하기 위해 실질적으로 사용자에 의해 소비된 리소스의 크기 v(t)를 기반으로 하는 누적요금계획(CPS) 기법을 제시한다. CPS는 미래에 상업적 네트워크의 중요한 관리기능을 결정한다. 이 논문에서는 EWM 기법을 적용하여, CPS를 이용하여 유연하면서도 합리적인 인터넷 요금구조, 시장관리기법, 투명성, 예측성, 단순성 등이 고려되는 인터넷 요금부과 시스템의 수정된 구현기법을 제시한다.

• 대한관절경학회지
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• 제13권2호
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• pp.97-104
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• 2009

Optimal treatment of the torn anterior cruciate ligament (ACL) remains controversial. The complexity of surgically reproducing the natural biomechanical and anatomical function of the ACL has led to a diversity of reconstructive procedures. Controversy continues to exist regarding the best reconstructive procedure for the ACL deficient knee, but currently, there is no ideal method. Because of the increased frequency of ACL injury and the functional impairment resulting from that, the role of mechanoreceptors in the ACL recently has attracted considerable attention. Proper reconstruction of the ruptured ACL does not always have good results. Success after operation may depend not only on the mechanical stability but also on the quality of recovery of proprioception. It is well known that most ACL are ruptured in proximal half and most mechanoreceptors have been reported to be located in the subsynovial layer and near the tibial insertion of the ACL. Expected roles of tibial remnant is to enhance the revascularization and cellular proliferation of the graft, to preserve proprioceptive function, and to be able to acquire anatomical placement of the graft without roof impingement. The remnant of the ruptured ACL has been removed to clearly visualize the ACL footprint or decrease the risk of impingement and Cyclops lesion in most current techniques for ACL reconstruction. Therefore it seems reasonable to assume that preserving the tibial remnant as much as possible as a source of reinnervation, if technically possible without causing impingement, would be of potential benefit to the patient. In addition, it will facilitate the vascular ingrowth and ligamentization of the grafted ACL.

• 대한한의학회지
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• 제42권4호
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• pp.75-101
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• 2021

Objectives: ncluding stroke. The aim of this study was to systematically review the clinical evidence of CT for stroke. Methods: To identify randomized controlled trials (RCTs) reporting the effectiveness and/or safety of CT, seven databases including PubMed, EMBASE, and Cochrane Library were searched for articles published from January 2000 to February 2021 without language restrictions. Meta-analysis was performed using Review Manager 5.4 software and the results were presented as mean difference (MD) or standard mean difference (SMD) for continuous variables and odds ratio (OR) for diverse variables with 95% confidence intervals (CIs). Assessment of the methodological quality of the eligible trials was conducted using the Cochrane Collaboration tool for risk of bias in RCTs. Results: Twenty-two RCTs with 1653 participants were included in the final analysis. CT provided additional benefit in improving upper limb motor function (Fugl-Meyer assessment for upper limb motor function, MD 6.91, 95% CI 4.64 to 1.67, P<0.00001) and spasticity (response rate, OR 3.28, 95% CI 1.31 to 8.22, P=0.08) in stroke survivors receiving conventional medical treatment. These findings were supported with a moderate level of evidence. CT did not significantly increase the occurrence of adverse events. Conclusions: This study demonstrated the potential of CT to be beneficial in managing a variety of complications in stroke survivors. However, to compensate for the shortcomings of the existing evidence, rigorously designed large-scale RCTs are warranted in the future.

• 항공우주정책ㆍ법학회지
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• 제5권
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• pp.303-320
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• 1993

The construction of New Seoul International Airport is under way despite much controversy. Among much discussed, but not well-formulated controversy is the possibility of the airport as a hub in the North Asia Region. This paper specifies the factors which render it possible for an airport to be a regional hub. Then each factor is applied to the new airport to see whether it can function as a hub airport. Also examined is the qualitative cost and benefit calculation related to the hub function. The usual discussion has missed one big point of cost side of hub function in the belief that the hub only produces benefits to the national economy where the airline and airport industry belong; earlier-than-expected congestion and the necessity to expand the airport sufficiently enough to accommodate the increasing air demand. An airport as a hub is determined by several factors; geographical location ; economic status of the country where the airport belongs ; bilateral air service agreements according to which the airlines can exercise the route rights; the airport charges which directly influence the cost structure of the carriers ; international aviation and airport related policies of each country in the region ; airport capacity etc. The tentative implications of this paper are the followings; first, the new airport is able to function as a regional hub in the transpacific routes which connect Asian countries and North America. That is, directional hubbing by the airlines is implicated; second, the main benefits may be accrued to american airlines exercising all the route rights in the Asian region; third, the governmental effort to make the new airport a regional hub must take caution in optimizing the hubbing level (% of transitting passengers and freight) between the benefits and the costs. Further Studies may include optimal level of hubbing for the new airport and, quantification of the impact of the new airport on the national economy depending on the degree of hubbing.

• 한국전문물리치료학회지
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• 제19권1호
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• pp.56-65
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• 2012

This study examines the effects of a rehabilitation program on quality of life (QOL), cardiopulmonary function and fatigue during radiotherapy for breast cancer patients. The program includes aerobic exercise, stretching and strengthening exercises. Sixty-five women participated in this study and they were asked to perform supervised exercises that last for 60 minutes five times a week for six weeks. The European organization for research and treatment of cancer-cancer (EORTC QLQ-C30) and the breast (EORTC QLQ-BR23), predicted maximal volume of oxygen consumption ($VO_{2max}$) and fatigue severity scale (FSS) were assessed before and after the rehabilitation program. The 60-minute program consisted of a 10-minute warm-up, 30-minute of aerobic exercises, and 15-minute of strengthening exercises, followed by a five-minute cool-down. Heart rates were monitored throughout the exercise class to ensure that patients were exercising at the target heart rate of 40~75% of the age-adjusted heart rate maximum. There were statistically significant differences in the changes of physical function and cancer related symptoms in the EORTC QLQ-C30 and EORTC QLQ-BR23 (p<.05). There was a statistically significant improvement in the predicted $VO_{2max}$ (p<.05), although there were no significant differences in the FSS (p>.05). The results of our study suggest that a supervised rehabilitation program may benefit the physical aspects and QOL of patients receiving radiotherapy for breast cancer.