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網狀織內皮細胞系統이 胸腺『아렐기-』性變化에 미치는 影響에關한 實驗的硏究
柳昌鉉 최신의학사 1958 最新醫學 Vol.1 No.1
Series of studies regarding to the relation of the R.E.S. to allergic changes were carried out by many investigators. Boyd, Topley and Wilson, Wilson and Bloom, Hayashi and Maruyama described the produc- tion of antibody in the R.E.S.. Oka found that anaphyla ctic shock was inhibited by splenectomy. Prof.Yun, Far- mer reported that anaphylactic shock was inhibited by thymusectomy: Meanwhile, Ogawa and Isida recogni- zed that , anaphylactic shock was aggrevated by the administration of thymic substance. Juiigeblut and Berlot, Gay and Clark, Tuft, Oka, Sakurai, Watanave, Hirakawa and Ozima and Iwaii also recognized inhibition of anaphylactic shock in !he R.E.S. blockaded animals. Akahoshi, Apitz, Klinge and Umasugi reported that the main hyperallergic changes in liver were changed' in the stellet cells. Haedel and,Karsue have reported that anaphylactic- shock was inhibited by the-injection of a large dose of India ink solution and was aggrevated by a small dose of India ink solution: Prof. Yun, Moldovan, Slavoacet et Zolog found a protective substance against anaphylactic shock in the serum of the R. E. S. blockaded animal and claimed that the protective substance seems to be corresponded by the endocrine function in the R.E.S..Seul has reported that allergic in the liver were inhibited either by the injection of India ink solution or serum from the R. E. S. blockaded animal. 'Song also has recognized that the injection of India ink solution or serum from the R. E. S. blockaded animal inhibited allergic changes in the lungs. The experiment to be reported in this paper was to study the influence of the R.E.S. on allergic changes in thymus. Experimental material and method Normal rabbit weighing around 800 grams were used. I cc. of normal horse serum per kilogram of horse serum per kilogram of body weight given' locally . in thymus parencyma two weeks later.: For blockading the R.E.S., India ink solution obtained by the sterili- zation of i0% of BOPIL MUkJIP saline. solution was used. 1. Nonsensitizing group. The normal horse serum was injected locally in'the thymus parenchyma without sensitization. 2. Sensitizing group. The normal horse serum was injected subcutaneo 4 times for sensitizing. For reinjection, O.I cc, of normal horse serum per kilogram of body weight was given to the thymus parenchyma two weeks later. 3. Single injection of 50c. India ink solution. Allergic changes were observed in rabbits into which India ink solution, 5 cc. per kilogram of body Weight, was injected- intravenously 24 hours before sensitization. 4. Plural injection of 5 cc. India ink solution. Allergic changes were observed An rabbits into which India, ink :solution, 5 cc. per kilogram of body weight, was injected intravenouslly 6 times with 12 hours intervals 24 hours before sensitization. 5. Injection of the serum from normal rabbits. Allergic changes in. the thymus were observed in rabbits into which normal rabbit serum, 2 cc. per kilogram of body weight was injected intravenously 24 hours before sensitization. 6. Injection of the serum from single injection of 5 cc. India ink solution. Serum from rabbits, 2 cc. per kilogram of body weight,' into 'which 5 cc, of India ink solution per kilogram. of body weight had,,been injected was given 24 hours before sensitization. ` 7. Injection' of the serum from "plural injection of 5 cc. India ink solution. "The serum from rabbits, ,2 cc. per kilogram of body weight, into which 5, cc, of India ink solution per Kilogram of body weight " had been `injected 6 times with 12 hours intervals was given 24 hours before sensitization. Discussion Moldvan, Slovoaca of Zolog, Prof. Yun claimed the existance of inhibitory substance against allergic changes in the serum of the R.E,S. blockade. As ohs erved in these experiment, the 'injection of serum from rabbits blockaded with India ink solution, especially in the group receiving the serum from single iniection of India ink solution inhibited markedly allergic changes in thymus. It is quite apparent that the serum of the R. E. S. blockaded rabbits contain an inhibited subst- ante against allergic changes. Allergic changes in thymus were slightly inhibited. in rabbits directly blockaded with India ink solution. Jungeblut and Berlot, Gay and. Clark, Siegmond and Okazaki previously descrived the inhibition of allergic changes in the R.E.S. blockade. That is the inhibitory substance against allergic' changes were secreted from the R. E. S.. Conclusions. Studies on the relation between allergic changes in thymus and the R. E. S. are reported. 1) The injection of serum from the R.E.S. blockade with India ink solution inhibited allergic changes in thymus. 2) Direct blockade of the R. E. S. slightly, inhibited, allergic changes in thymus.
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유창현,강찬,Deuk-Soo Hwang,,황정모,이기수,박용철 대한정형외과학회 2018 Clinics in Orthopedic Surgery Vol.10 No.3
Background: After calcaneal fracture surgery, a short leg splint and cast are typically applied. However, these restrict joint exercises, which is inconvenient for patients. In addition, there is a risk of complications, such as pressure ulcers or nerve paralysis with a short leg cast. In this study, we evaluated clinical and radiological outcomes of the use of a specially designed calcaneal brace after calcaneal fracture surgery. Methods: From among patients who underwent open reduction and internal fixation for calcaneal fracture between July 9, 2013 and May 31, 2017, 102 patients who wore a calcaneal fracture brace (group A) and 82 patients who wore a postoperative short leg cast (group B) were randomly chosen for this study. Radiological changes and clinical factors were compared between the two groups. After swelling at the surgical site decreased, a special calcaneal brace was applied to patients in group A. They were allowed to perform early weight bearing and joint motion. Patients in group B were immobilized in a short leg cast and were told to avoid weight bearing for 6 weeks. In each group, the Böhler’s angle and Gissane’s angle were measured and compared using postoperative and final follow-up radiographs. Pain (measured using a visual analogue scale [VAS]) and ankle joint range of motion (dorsiflexion, plantar flexion, eversion, and inversion) were measured serially until the final follow-up visit. Results: There were no significant differences in the Böhler’s angle or Gissane’s angle between the two groups as measured postoperatively and at the final follow-up (paired t -test). Differences in the VAS pain score and eversion were also statistically nonsignificant between the two groups. However, group A had a significantly higher range of dorsiflexion (p = 0.021), plantar flexion (p = 0.012), and inversion (p = 0.045) of the ankle than group B (independent t -test). Conclusions: Application of the calcaneal fracture brace after open reduction and internal fixation of a calcaneal fracture not only maintained the fracture reduction but allowed for greater joint motion than the short leg cast. Thus, the calcaneal fracture brace can be considered an effective postoperative management option that enables early resumption of daily activities and facilitates postoperative joint motion.
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항공기용 디지털 다기능 시현기의 등화기 회로 적용을 통한 화면 노이즈 개선 설계
유창현(Chang-Hyun Yoo),장정수(Jung-soo Jang),이득원(Duck-Won Lee) 한국항공우주학회 2011 한국항공우주학회 학술발표회 논문집 Vol.2011 No.11
본 논문은 항공기용 디지털 다기능시현기의 간헐적으로 발생했던 화면 노이즈 현상을 개선하기 위한 회로 설계내용을 제안한다. 항공기의 화면노이즈 문제는 다기능시현기 단일장비의 결함이 아니라 항공기 구조의 특이성과 연관되어 발생하는 복합적인 문제로 추정되었으며, 이러한 문제점들은 보완해 주기 위하여 수신부 끝단인 다기능시현기에 등화기(Equalizer) 회로를 적용하여 신호의 왜곡을 보상해 주는 방안을 모색하였다. In this paper, we present a circuit design that improving intermittent display noise of Avionics Digital Multi Function Display, The cause of display noise at avionics system is thought to have been not a fault of Multi Function Display but complex problem that involves avionics own unique characteristics. To improve these problems, we had investigated a method to compensate skewed signals using a equalizer circuit at the end of receiver, Multi Function Display.
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유창현(Chang Hyun Yoo),김상효(Sang Hyo Kim),최영길(Young Gil Choi) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.4
Eosinophilic gastroenteritis is a clinicopathplpgic entity characterized by ecosinophilic inflammation of either mucosa, submucosa, muscle or/and serosa, most commonly involves the stomach and proximal small. Intestine, white is a rare disease of unknown etiology. The clinical manifestations are related to the site of involved gastrointestinal tract. We persent a case of isolated eosinophilic ileocolitis diagnosed to be appendicitis preoperatively, and review the existing literatures.
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