• 척추신경추나의학회지
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• 제13권2호
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• pp.65-73
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• 2018

Objectives : To verify Korean Medicinal Combination Treatments for patients who have Failed Back Surgery Syndrome along with scoliosis Methods : We used Acupuncture, Chuna manual therapy, Pharmacoacupuncture, Herbal medication. We measured Numeral Rating Sacle(NRS), Pain-Free walking distance(PFWD) and Oswestry Disability Index(ODI) score to evaluate the treatment effects. Results : Patients' LBP & Rt.leg pain NRS, PFWD and ODI score were improved. Conclusions : Traditional Korean medicine can be effective for FBSS patients along with scoliosis.

• 국제지역연구
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• 제21권4호
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• pp.271-294
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• 2017

Despite a huge amount of foreign assistance and close economic guidance by international donors throughout the past decades, Zambia today still suffer from a high level of aid dependency and the absence of sustainable economic development. In this study, I investigate the factors that resulted in aid (and development) failure in Zambia, focusing on institutional/historical contexts. I propose that in Zambia, government has largely failed to implement (or even produce) effective economic policies that could lead to successful use of foreign assistance for long-term, sustainable development. In particular, I focus on the nature of state and politics in Zambia, and argue that failed politics is one of the main causes of development and aid failure in Zambia and highlight colonial legacies and other contextual/institutional factors to understand the nature of politics and state in Zambia. In particular, this paper proposes that the Zambian case demonstrates that foreign aid and donor influence could worsen the situation directly by simply providing wrong guidance and also by further weakening the state (and institutional) capacity of the recipient country.

• 한국산업융합학회 논문집
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• 제26권2_1호
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• pp.231-238
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• 2023

This paper develops the theory for a novel fault-tolerant, permanent magnet biased, 6-active-pole, homopolar magnetic bearing. The Lagrange Multiplier optimization with equality constraints is utilized to calculate the optimal distribution matrices for the failed bearing. some numerical examples of distribution matrices are provided to illustrate the new theory. Simulations show that very much the same dynamic responses (orbits or displacements) are maintained throughout failure events (up to any combination of 3 coils failed for the 6 pole magnetic bearing) while currents and fluxes change significantly. The overall load capacity of the bearing actuator is reduced as coils fail. The same magnetic forces are then preserved up to the load capacity of the failed bearing.

• Journal of Yeungnam Medical Science
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• 제41권3호
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• pp.166-178
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• 2024

Amid the worldwide increase in spinal surgery rates, a significant proportion of patients continue to experience refractory chronic pain, resulting in reduced quality of life and escalated healthcare demands. Failed back surgery syndrome (FBSS) is a clinical condition characterized by persistent or recurrent pain after one or more spinal surgeries. The diverse characteristics and stigmatizing descriptions of FBSS necessitate a reevaluation of its nomenclature to reflect its complexity more accurately. Accurate identification of the cause of FBSS is hampered by the complex nature of the syndrome and limitations of current diagnostic labels. Management requires a multidisciplinary approach that may include pharmacological treatment, physical therapy, psychological support, and interventional procedures, emphasizing realistic goal-setting and patient education. Further research is needed to increase our understanding, improve diagnostic accuracy, and develop more effective management strategies.

• 대한간호학회지
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• 제30권4호
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• pp.995-1005
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• 2000

This study was performed to identify the physiological and psychological variables related to successful weaning from a mechanical ventilator. The subjects of this study were 22 patients who received mechanical ventilation therapy for more than 3 days in intensive care units. Before the weaning trial, baseline data for following physiologic variables were obtained: spontaneous respiration rate, blood pressure, pulse rate, PaO2, PaCO2, PEEP, static compliance, minute ventilation, tidal volume, rapid shallow breathing index(f/VT), SaO2, PaO2/FiO2 and mean arterial pressure. During spontaneous breathing, physiologic and psychologic variables such as vital signs, ABG, perspiration, chest retraction, paradoxical respiration, dyspnea, anxiety, confidence and efficacy were measured. Successful weaning was defined as sustaining spontaneous respiration over 24 hours after extubation. Weaning failure was defined as the development of more than one of following signs: (1) hypoxemia, (2) CO2 retention or (3) perspiration, tachypnea, chest retraction, tachycardia, arrhythmia, hypotension or hypertension. Subjects (N=18) who successfully weaned from mechanical ventilator were compared with subjects (N=4) who failed. The results are as follows; Eighteen percents of the subjects failed during the weaning trial. Most subjects in the failed group were mechanically ventilated for long-time. This result shows that the success of weaning is more difficult in long-term ventilation patients. In the baseline data that was measured before weaning trial, the mean score of PaO2 in the successfully weaned group was 121mmHg. This is significantly higher than the mean score of PaO2 in the failed group(95mmHg). However, the scores of pH, tidal volume, f/VT, pulse rates, blood pressure, mean airway pressure, SaO2, and PaCO2 were similar between the two groups. Specially the scores of f/VT index as a predominant predictor for successful weaning were not significant (f/VT=44.4) and (f/VT=47). During spontaneous breathing, the scores of dyspnea and anxiety level in the successfully weaned group were less than those of the failed group. On the contrary, the scores of confidence and efficacy in the successful group were greater than those of the failed group. In conclusion, the baseline data that were measured before weaning trial were similar between the both groups, therefore future studies are needed to focus on searching other variables besides physiological parameters related to weaning outcome.

• Journal of Chest Surgery
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• 제6권2호
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• pp.131-142
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• 1973

Studies of cardiopulmonary function and acid-base balance were performed on 29 dogs during control period, during oligemic hypotension and following return of blood to the animals. Intravenous morphine and local anesthesia were used. Fifteen of the 29 animals survived the complete experiment. The 14 animals that failed to survive the experimental period died between 15 to 90 minutes after the onset of bleeding. The results were as follows. 1. The heart rate increased after the onset of bleeding and failed to return to control level following reinfusion. Stroke volume decreased markedly after bleeding and failed to recover after return of blood from the reservoir. Cardiac output also decreased during oligemic hypotension and was maintained at this level after re-infusion. Total peripheral resistance decreased significantly immediately after bleeding, however it increased soon over the pre-bleeding level. Central venous pressure decreased after the onset of bleeding and remained at lower level for the rest of the experimental period. Arterial blood pressure, clown to 40-45 mmHg by acute hemorrhage, was elevated near to control level. Left ventricular work decreased tremendously during oligemic hypotension and failed to return to control level with the re-infusion of blood. Hematocrit value showed no significant decrease after bleeding and increased after re-infusion. Hemoglobin decreased after the onset of bleeding and recovered to control value after re-infusion. 2. The respiratory rate fell rapidly after bleeding from 124 to 29 and remained at this lower level for the remainder of the experiment. The tidal volume increased after bleeding and was maintained at this level for the remainder of the experiment. The respiratory minute volume showed no significant changes throughout the experimental period. Oxygen consumption fell lightly in all animals during oligemic hypotension and returned to normal levels following re-infusion. Arterial oxygen content and arterial oxygen saturation decreased following bleeding and the values returned to normal levels after the return of blood from the reservoir The arterio-venous oxygen difference increased after the onset of bleeding. It failed to return to normal values following re-infusion. Arterial $Pco_2$ decreased in all animals after the beginning of the bleeding. Partial pressure of $Co_2$ continued to fall until re-infusion, after which the values returned toward normal. Animals became acidotic. The pH fell to lower level following bleeding. Lactic acid and lactate: pyruvate ratio also increased during same period. Arterial pH and lactic acid failed to return to control value and lactate: pyruvate ratio increased more after re-infusion. Sodium bicarbonate decreased after bleeding and returned to control value following re-infusion.

• 대한치과보철학회지
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• 제56권2호
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• pp.95-104
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• 2018

목적: 이 연구의 목적은 새롭게 개발된 대한치과보철학회의 보철물 평가 기준을 적용하여 고정성, 가철성 그리고 임플란트 보철물의 성공과 실패를 평가함으로써 보철물의 수명과 이에 관련된 요인을 분석하는 데 있다. 대상 및 방법: 전국 13개 대학/종합병원 보철과에 내원한 환자들을 대상으로 구강내 사용중인 보철물을 평가하였다. 대한치과보철학회의 기준에 따라, 수는 성공, 우, 양, 가는 실패로 규정하고, 실패한 보철물의 평균 사용기간과 실패와 관련된 요인을 분석하였다. Kaplan-Meier 분석에 의한 성공률을 분석하였다. 결과: 고정성 보철 810 증례, 가철성 보철 519 증례, 그리고 임플란트 보철 475 증례, 총 1,804 증례가 연구에 포함되었다. 검사 시점에 실패로 판정된 보철물의 평균 사용기간은 고정성 보철물은 $11.41{\pm}0.30$년, 중간값은 10년이었고, 가철성 보철물은 $8.18{\pm}0.29$년, 중간값 7년이었으며, 임플란트 보철물은 $7.99{\pm}0.30$년, 중간값은 7년이었다. 실패와 관련있는 요인 중 고정성보철물은 유닛 수, 지대치 수, 근관치료된 지대치 수, 치태지수였고, 가철성 보철물의 경우 대합치였으며 임플란트 보철의 경우 임플란트 개수, 사용기간, 치태지수였다. 결론: 대한치과보철학회의 기준으로 보철물을 평가한 결과, 실패한 보철물의 평균수명은 고정성 11.41년, 가철성 8.18년, 그리고 임플란트 보철물은 7.99년이었다.

• 한국운동역학회지
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• 제19권4호
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• pp.739-748
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• 2009

본 연구의 목적은 2008년 베이징올림픽 남자 역도 금메달리스트인 사재혁선수를 대상으로 최대의 노력으로 경기력을 수행하고 있는 실제 경기상황에서 동일한 중량으로 Jerk동작의 1차시기 실패 후 2차시기 성공을 운동학적으로 분석하여 실패의 원인을 구명하여 사재혁 선수의 Jerk기술 향상과 경기력을 극대화시키고 현장에서 선수들을 지도하는데 필요한 기초자료를 제공하는데 있었다. 본 연구를 수행한 결과 다음과 같은 결론을 얻었다. 성공 동작이 실패동작에 비하여 1국면에서는 짧은 시간을, 3국면과 4국면에서는 다소 긴 수행시간을 보였다. 바벨의 수직변화는 큰 차이를 보이지는 않았으나, 무릎에서는 E4에서 실패 시 낮은 수직 위치를 나타냈다. 바벨의 수직속도는 4국면에서 무릎의 수직속도는 3국면과 4국면에서 성공과 실패동작 간에 큰 차이를 보였다. 3국면의 실패동작에서 성공동작에 비하여 빠른 신체무게중심의 하방속도가 나타났다. E3순간의 실패동작에서 성공동작에 비하여 더 굴곡된 무릎각도가 나타났다.

• Journal of Acupuncture Research
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• 제32권2호
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• pp.217-227
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• 2015

Objectives : This study is an evaluation of the effectiveness of treatments combined with Korean medical methods, such as relaxative Chuna and Gangchuk herbal medicines, for patients with failed back surgery syndrome. Methods : In this study, medical records of ten patients who experienced failed back surgery syndrome and participated in intensive Korean medical treatment were reviewed. All patients received relaxative Chuna and acupuncture along with Gangchuk herbal medicines during hospitalization. Numeric rating scale(NRS) in the degree of 0 to 10, pain-free walking distance(PFWD) and oswestry disability index(ODI) were measured before and after treatments. Results : The patients were hospitalized for an average of 22 days. The average NRS of lumbar pain in all patients decreased from $7.7{\pm}1.6$ to $3.2{\pm}2.2$ and the average NRS decline of leg pain was from $7.7{\pm}1.7$ to $3.2{\pm}2.2$, both of which indicate statistical significance(p < 0.05). PFWD in all patients increased from 113.3 m to 798.1 m on average. The average ODI in all patients significantly improved from $63.9{\pm}7.0$ to $43.9{\pm}6.9$(p < 0.05). Conclusions : The treatments combined with Korean medical methods for failed back surgery syndrome patients are clinically effective and viable.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2003년도 봄 학술발표회 논문집
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• pp.137-144
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• 2003

Continuous road improvement is required by situation that need link between cities by special quality that is our country's topography enemy that most of country have consisted to mountain district. According to this, occurrence of large cutting slope is formed necessarily Cutting slope are very weak real condition because of concentrative downpour and can know easily by example of typhoon Rusa. This study did helpful in slope design and carrying out suitable reinforcing method.