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Cardiovascular malformations, such as bicuspid aortic valve and coarctation of the aorta, are more prevalent in patients with Turner syndrome than in the general population. Here, we describe the case of a 35-year-old female with Turner syndrome who was admitted to our hospital with a fever caused by infective endocarditis. Aortic coarctation was diagnosed using computed tomography. The patient was treated with antibiotics and a stent was then implanted. Endovascular therapy using stents is a safe and effective treatment option for aortic coarctation in patients with Turner syndrome. (Korean J Med 2015;89:331-334)
본 논문에서는 AND/OR 프로세스 모델의 수행시 부담을 줄이기 위해 컴파일시에 수행 순서를 생성하도록 하였다. 가능한 입력 바인딩 패턴에 따라 heuristic한 규칙에 의해 여러개의 가능한 선형 순서가 만들어지며, 수행시에는 바디리터럴을 풀기위해 그중 하나가 선택된다. 각각의 선형 순서는 적합한 데이터 종속 관계를 만들어내기 때문에 거의 최적의 AND 병렬성을 추구할 수 있으며, 이것은 기존의 다른 컴파일 방식들보다 우수하다. 때로는 AND 병렬성이 제한되는 경우가 있으나, 수행시 부담을 줄임으로써 보상될 수 있다. 전방향 및 후방향 수행을 위한 수행시 제어도 간단한 자료 구조에 의해서 효과적으로 제어된다. The AND/OR process model is modified to reduce the runtime overhead in this thesis. In the proposed model, the run time overhead for literal ordering is reduced by generating the execution orders ill compile time. Several possible ordered lists are generated in compile time with several heuristic rules according to the possible input binding patterns and one of them is selected in run time to solve the body literals. Because each ordered list can generate the proper data dependencies, the heady optimal AND parallelism can be exploited, which is better than the other compile approaches. Though this approach may restrict AND parallelism in some cases, it can be compensated by reducing the run time overhead. The run time control for the forward and backward executions is managed simply and efficiently by a simple data structure.
An Experimental investigation was carried out to examine the heat transfer characteristics of rapid cooling process by Twin-Roll. The experimental results were compared with numerical solutions. The measured temperature showed the about 3 % difference to the calculated results. But the cooling rate estimated by the microstructure interpretation method has much difference to the calculated results.
An experimental investigation has been carried out to examine the influence of injector design variables and operating conditions on the resultant drop size for triplet impinging streams injectors. The variables studied in this investigation are pressure drop, impinging angle, orifice length to diameter ratio, and impinging point distance. Droplet-size data are obtained using water as the propellant simulant by Malvern Particle Analyzer System. Drop size decreases with increasing impinging angle and pressure drop while other injector parameters remain constant at the same point. But it is found that there is no noticeable droplet-size change which results from change in orifice length to diameter ratio or impinging point distance within the investigated range.
Doxazosin은 알파아드레날린길항제의 대표적인 약으로 전립선비대증에 아주 흔하게 사용되고 있다. 비슷하게 사용되는 finasteride, dutasteride와 같은 5-알파환원효소억제제는 여성형유방증, 유방통과 같은 부작용이 흔하게 보고되고 있으나 알파아드레날린길항제는 보고된 바가 국내에 아직 없다. 또한 알파아드레날린길항제는 약리 기전으로 보아 그러한 부작용을 의심하는 것이 쉽지 않다. 이에 doxazosin 사용 후 일측성의 여성형유방증과 유방통이 발생한 1예를 경험하였기에 국내 첫 번째 사례로 보고하는 바이다. Doxazosin is an adrenergic alpha-1 receptor antagonist used to treat lower urinary tract symptoms that are common in prostatic hyperplasia. To our knowledge, few cases of gynecomastia and mastodynia, as a complication of adrenergic alpha-1 receptor antagonist, have been reported to date; no cases have been reported in Korea. We describe a case involving a 78-year-old man treated for prostatic hyperplasia with 13 months of doxazosin. He complained about unilateral gynecomstia and mastodynia. Five months after the discontinuation of doxazosin, the gynecomastia was significantly improved. This is the first reported case of gynecomastia and mastodynia associated with doxazosin use in Korea. (Korean J Med 2016;90:239-242)
Relapsing polychondritis is an uncommon disease associated with inflammation in cartilaginous tissues throughout the body, particularly affecting the cartilaginous structures of ears, nose, joints, and respiratory tract. Several autoimmune diseases, including vasculitis, are associated with the concurrent relapsing polychondritis. However, ankylosing spondylitis primarily affecting the sacroiliac joints and spine is rare in patients with relapsing polychondritis. We report on a 54-year-old man with concurrently relapsing polychondritis and ankylosing spondylitis. (J Rheum Dis 2015;22:56-60)
김태형 ( Tae Hyung Kim ), 엄순호 ( Soon Ho Um ), 박상정 ( Sang Jung Park ), 박승운 ( Seung Woon Park ), 이한아 ( Han Ah Lee ), 서연석 ( Yeon Seok Seo ), 유영동 ( Young Dong Yu ), 김동식 ( Dong-sik Kim ), 김주영 ( Joo Young Kim ) 대한간암학회 2017 대한간암학회지 Vol.17 No.1
Liver cancer is more complex to treat compared to cancers in other organs, since liver function should be considered. In addition, only a few patients can be applied curative treatment due to advanced stage at diagnosis. Therefore, early stage detection is important and has been increased through screening and surveillance programs using image modalities recently. However, it is still difficult to diagnose small or hypovascular hepatocellular carcinoma (HCC) even using advanced image modalties. In particular, hypovascular HCCs do not show arterial contrast enhancement which is a typical finding of HCC on computed tomography (CT) and magnetic resonance imaging (MRI). Those also account for a considerable portion of early HCC. We present 54 years-old man who had recurrent hypervascular and hypovascular nodules on three phase CT and gadoxetic acid-enhanced MRI. The nodules were removed by surgical resection and confirmed as combined hepatocellular-cholangiocarcinoma and well differentiated HCC respectively. (J Liver Cancer 2017;17:94-99)
Experimental analysis has been carried out to investigate oil temperature control characteristics of special vehicle hydraulic system. Hydraulic system performance is largely affected by oil temperature, and there are considerable malfunctions in the system for high temperature conditions caused by heavy load and continuous operation. Oil pressure in the hydraulic system decreases with oil temperature, and its variation rate becomes less steep. There is severe time delay for oil temperature control due to the operation of heat exchanger system, and it depends on the oil flow rate and pressure in the system. These results in this study can be applied to the design of automatic control system in the special vehicle hydraulic system.