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기본형 간헐외사시에서 눈가림 및 +3.00디옵터 구면렌즈검사 후 사시각 변화
진현철,박지현,이세엽 대한안과학회 2010 대한안과학회지 Vol.51 No.12
Purpose: To assess the change of deviation angle after the patch test and +3.00 diopter (D) spherical lens test in basic intermittent exotropia. Methods: The present study included 57 patients diagnosed with basic intermittent exotropia. The deviation angles at near and far before and after monocular occlusion of 40 minutes or more were measured. Afterward, change of deviation was also measured by placing +3.00 D spherical lenses at near. Results: Results from the study revealed pre-occlusion mean deviation angles of 23.1 ± 7.41 prism diopters (PD) at near, and 23.9 ± 6.56 PD at far. After the patch test, the mean deviation angles were increased to 28.3 ± 6.50 PD (p < 0.0001) at near, and 25.5 ± 6.40 PD (p < 0.0001) at far. After the +3.00 D spherical lens test, the angle was increased to 31.5 ± 7.53 PD (p < 0.0001) at near. Using the gradient method, the average accommodation convergence - accommodation ratio was 1.4 ± 1.19 PD/D. Conclusions: Both the patch test and +3.00 D spherical lens test significantly increased the deviation angles at near and far, they helped to find the maximum deviation angle in patients with basic intermittent exotropia. J Korean Ophthalmol Soc 2010;51(12):1620-1624
진현철,이영춘,이세엽,Hyun Chul Jin,Young Chun Lee,Se Youp Lee 대한안과학회 2012 대한안과학회지 Vol.53 No.1
Purpose: The present study was conducted to identify the correlation between control grade and stereoacuity in basic intermittent exotropia (X[T]). Methods: Eighty-six patients with basic X (T) were divided into 3 subgroups according to their control grade and the near and distant stereoacuities were evaluated. Results: Group 1; good control group, consisted of 28 patients, group 2; fair control, 30 patients, and group 3; poor control, 28 patients. Mean near stereoacuities measured by the Titmus test were 58.21 arcseconds in group 1, 75.33 arcseconds in group 2, and 151.43 arcseconds in group 3. The mean distant stereoacuities measured by a Mentor B-VAT? II-SG videoacuity tester were 118.93 arcseconds in group 1, 165.33 arcseconds in group 2, and 276.43 arcseconds in group 3. When comparing the 3 groups, the poorer the control grade, the worse were the near and distant stereoacuities (p = 0.002, p < 0.001). When compared in pairs, however, group 1 showed a better near stereoacuity than groups 2 and 3 (p = 0.02, p = 0.002, respectively), while group 2 and group 3 did not show any distinct differences (p = 0.13). Group 1 also showed a better distant stereoacuity than groups 2 and 3 (p = 0.02, p < 0.001, respectively), as did group 2 compared to group 3 (p < 0.001). Conclusions: Control grade and distant stereoacuity have significant correlation in patients with basic X (T) and can function as helpful indicators for monitoring the deterioration and progression of exodeviation. J Korean Ophthalmol Soc 2012;53(1):133-137
독활지황탕(獨活地黃湯)의 위장관(胃腸管) 및 중추신경(中樞神經)에 미치는 효능(效能)에 관(關)한 실험적(實驗的) 연구(硏究)
진현철,Jin, Hyon-Chol 사상체질의학회 1997 사상체질의학회지 Vol.9 No.2
An experimental study was done to examine the effects of Dokwhaljiwhang-tang on gastro-intestinal track and central nervous system and were undertaken by being carried out with rat. The following results have been obtained ; 1. Dokwhaljiwhang-tang showed to have an inhibitory effect on the smooth muscle contraction of the isolated ileum by acetylcholene chloride and barium chloride. 2. Dokwhaljiwhang-tang showed to have an inhibitory effect on the contraction of the gastric fundus-strip by acetylcholine chloride and barium chloride. 3. The preventive effect was recognized on the pylorus-ligated ulcer, by administration of Dokwhaljiwhang-tang. 4. The preventive effect was not recognized on the indomethacine -induced ulcer, by administration of Dokwhaljiwhang-tang. 5. The inhibitory effects on the secretion gastric juice, free acidity were recognized, by administration of Dokwhaljiwhang-tang 6. The transport ability in the small intestine was increased, by administration of Dokwhaljiwhang-tang. 7. The transport ability in the large intestine was increased, by administration of Dokwhaljiwhang-tang. 8. The analgesic effect was recognized, by administration of Dokwhaljiwhang-tang. 9. The effect of sleeping time was not recognized, by administration of Dokwhaljiwhang-tang. according to the results, it is considered that Dokwhaljiwhang-tang has effects of gastric ulcer, chronic gastritis,hyper-acidity, gastroptosis such as abdominal discomfort, gastric acid, indigestion and anorexia.
진현철,이상래,류석용,김홍용 대한응급의학회 2003 대한응급의학회지 Vol.14 No.2
Acute renal infarction is an uncommon disease which is often delayed or missed due to its rarity and unspecific clinical presentations. Most patients have an underlying disease or embolic event that can be detected easily by history and physical examination. The frequently noted symptoms include flank, abdominal, and back pain, as well as nausea. The pain is usually acute, severe, and sharp in nature without radiation. The most sensitive laboratory test is lactate dehydrogenase. Angiography, renal scintigraphy, IVP (intravenous pyelography), sonography and, CT (computed tomography) can be used in diagnosing renal infarction. However, CT is more preferred for the diagnosis of renal infarction because it has the advantages of easy accessability and noninvasiveness. Once diagnosed, conservative treatment with intra-arterial infusion of thrombolytics or heparin appears to be the most favorable modality. We report a 82-year-old male with asynchronous bilateral renal infarctions associated with atrial fibrillation and coronary artery disease. His clinical status improved during admission without any events.
진현철(Hyeon-Cheol Zin),김정미(Jeong Mi Kim),김종근(Chonggun Kim) 한국정보과학회 2009 정보과학회 컴퓨팅의 실제 논문지 Vol.15 No.8
IP기반의 패킷망을 통해 음성 데이터를 전송하는 기술인 VoIP 기술은 PSTN 기반의 통신 방식과 달리 음성 데이터 뿐만 아니라 텍스트 데이터, 이미지 데이터, 멀티미디어 데이터 등도 전송할 수 있으므로 서비스 통합화, 비용절감 등의 장점을 가지고 있다. 또한, VoIP 단말기는 인터넷이 연결된 곳에서는 어디든 통신이 가능하므로 모바일 단말기와 유사한 이동성을 제공한다. 따라서, 부정 사용자를 방지하기 위한 인증 서비스를 제공하는 것은 필수적이다. 본 논문에서는 VoIP 사용 환경에서 사용자 인증의 신뢰를 높이는 서비스 방안을 제안한다. VoIP technology for transmitting voice over IP network such as packet-based network has a lot of benefits by integrating services and reducing costs. The network is different from PSTN-based communications in some aspect such as transmitting not only voice but also text, image, multimedia data. In addition, portable terminals like a mobile phone, and ubiquitous communicator can easily access the internet for VoIP. Therefore, To prevent illegal users, offering certificate services is necessary. This study proposes a solution of user certification for a VoIP environment.