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장원익,김우상,이상훈 한국정치학회 2007 한국정치학회보 Vol.41 No.1
Most of the empirical studies on balance of power theory and power preponderance theories have been at the dyadic level. In this study we conduct empirical analysis on these theories at the systemic level. Especially, we test hypotheses related to polarity, power concentration and the outbreak of great power war. The findings show that in unipolarity great power war is less likely to occur. The results also suggest that in unipolarity when capabilities are concentrated to the hegemonic power war is less likely to break out. These findings have an important implication on international as well as regional security order. If the current hegemonic order is transformed into bipolarity or multipolarity war among great power in the system is more likely. 세력균형 이론 및 세력우위 이론과 관련된 최근까지의 경험적 연구는 거의 모두 국가쌍 수준에서 진행되었다. 본 연구에서는 양대 이론의 핵심 논쟁을 국제체제 수준에서 경험적으로 검증하는 데 주안점을 둔다. 특히, 어떤 형태의 극 체제(polarity)가 가장 안정적인 체제인지, 체제 내에서 국력 집중도(concentration)가 강대국 간의 전쟁발발 가능성에 어떤 영향을 미치는지에 관한 연구를 시도한다. 본 연구의 결과는 일극체제일 때가 일극체제가 아닐 때보다 강대국 간의 전쟁이 일어날 가능성이 낮음을 보여준다. 또한, 일극체제의 경우라 하더라도 상대적 국력이 최강대국에 집중되어 있을수록 전쟁 가능성이 낮음을 입증한다. 이러한 결과는 국제질서와 동아시아 지역 안보질서에 관해 중요한 함의를 제시한다. 현재의 국제체제가 양극체제나 다극체제로 변한다면 강대국 간의 전쟁 발발로 인해 체제 안정성은 현저하게 떨어질 수 있다는 것을 역설한다.
Aspirin 복용 후 발생한 양측성 돌발성 감각 신경성 난청 1예
장원익,김이석,김동욱,이병돈 대한이비인후과학회 부산,울산,경남 지부회 2010 임상이비인후과 Vol.21 No.1
Aspirin causes ototoxic side effects in some patients, such as bilateral mild to moderate sensorineural hearing loss and tinnitus, dizziness although its ototoxic mechanisms still remain mostly unclear. Generally, ototoxicity of the aspirin manifests bilateral sensorineural hearing loss that shows flat type or high-frequency type and sometimes accompanies dizziness, tinnitus, and ear fullness. The risk of ototoxicity increases with higher aspirin doses and prolonged treatment course. We report a case of sudden sensorineural hearing loss and dizziness and tinnitus after six hours with ordinary therapeutic dose of aspirin. The patient complained of bilateral tinnitus, ear fullness, and continuous dizziness for several hours with nausea and vomiting. In this case, the patient stopped taking the aspirin and there was a hearing improvement after three days. On five days after stopping taking the aspirin, both ear audiogram was checked within the normal hearing threshold.
A Flexible Skin Patch for Continuous Physiological Monitoring of Mental Disorders
장원익,이봉국,류진화,백인복,유한영,김승환 한국물리학회 2017 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.71 No.8
In this study, we have newly developed a flexible adhesive skin patch of electrocardiogram (ECG) device for continuous physiological monitoring of mental disorders. In addition, this flexible patch did not cause any damage to the skin even after 24 hours attachment. We have also suggested the possibility of novel interconnection for copper film on polyimide and polydimethylsiloxane (PDMS) layers of the flexible patch. Self-align and soldering of IC chips such as resistor between metal pads on flexible skin patch have also successfully fabricated for 5 min at 180 C in vacuum oven. Low temperature interconnection technology based on a Sn42/Bi58 solder was also developed for flexible ECG devices. As a result, we can monitor the mental health status through a comprehensive analysis of biological signals from flexible ECG devices.