• Title/Summary/Keyword: coma

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What Do MIR Properties of Galaxies in the Coma Supercluster Tell Us?

  • Lee, Gwang-Ho;Lee, Myung Gyoon
    • The Bulletin of The Korean Astronomical Society
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    • v.40 no.1
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    • pp.76.3-77
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    • 2015
  • MIR colors are an excellent tool to investigate the transition phase of galaxy evolution in terms of star formation at various phases. The Coma supercluster is the nearest massive supercluster, hosting two main clusters, the Coma (Abell 1656) and Leo (Abell 1367) clusters, and one galaxy group, the NGC 4555 group, providing an ideal laboratory to study how galaxies evolve depending on environment. We present the results of a study for MIR properties of galaxies in the Coma supercluster using multi-wavelength data from the optical to MIR including the Sloan Digital Sky Survey Data Release 12 and the Wide-field Infrared Survey Explorer. We investigate differences in MIR properties of galaxies among three galaxy systems, and discuss the results in relation with star formation history and morphological transformation of galaxies.

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Verification of the Objectivity for Application of a Modified Glasgow Coma Scale in a Pediatric Intensive Care Unit (일 대학병원 소아중환자실에서 Modified Glasgow Coma Scale 적용의 객관성 검증)

  • Song, Young-Ju;Ham, Gui-Sun;Lee, Sun-Young;Son, Ihn-Suk;Jung, Yu-Min;Park, Bo-Bae;Song, Min-Kyung
    • Perspectives in Nursing Science
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    • v.7 no.1
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    • pp.43-49
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    • 2010
  • Purpose: Rapid and accurate assessment of impaired consciousness is very important, especially for critically ill patients. Therefore, the Glasgow coma scale (GCS) has been widely adopted in the assessment of adult and pediatric comas. But the GCS should not be used for small children who show various normal responses according to their developmental stage. Therefore, the objectivity of pediatric coma measurements was verified by applying the modified GCS to patients in a pediatric intensive care unit (PICU) at a university hospital in Korea. Methods: The level of consciousness was evaluated for 200 cases who were admitted to a PICU from July 4, 2009 to September 18, 2009 and could show a verbal response, with our modified GCS for children. In addition, and we confirmed the frequency analysis and Kappa statistics with SPSS/WIN 17.0. Results: Kappa statistics which show inter-observer reliability were very good for all components (eye opening, verbal, and motor score) and was good for total GCS scores. Conclusion: It is concluded that our modified GCS is reliable. Therefore, reliable assessment for the level of consciousness is clinically practicable if enough training is supported.

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The Effect of Yukilsunki-tang extracts on Global Cerebral Ischemia in mice (육일순기탕(六一順氣湯) 추출물(抽出物)이 생쥐의 전뇌허혈(全腦虛血)에 미치는 영향(影響))

  • Jeong, Sung-Hyun;Shin, Gil-Cho;Lee, Won-Chul
    • The Journal of Dong Guk Oriental Medicine
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    • v.7 no.2
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    • pp.149-154
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    • 1999
  • The effect of Yukilsunki-tang extracts on global cerebral ischemia were investigated in this study. The multiple parameters of global cerebral ischemia assessed in mice included the duration of KCN-induced(1.8mg/kg i.v.) coma, the survival time of KCN-induced(3.0mg/kg i.v.) coma, the survival time exposed to hypoxia induced by vacuum pump. In the case of global cerebral ischemia International Cancer Research mice were used and divided into two groups at random Group A, normal control, was treated after oral administration of normal saline. Group B, experimental control, was treated after oral administration of 13.2mg/20g of Yukilsunki-tang extracts. Each treatment was KCN-induced(1.8mg/kg i.v.) coma, KCN-induced(3.0mg/kg i.v.) coma and exposure to hypoxia induced by vacuum pump. The results were obtained as follows ; In global cerebral ischemia, Yukilsunki-tang extracts significantly prolonged the duration of KCN-induced(1.8mg/kg i.v.) coma, the survival time of KCN-induced(3.0mg/kg i.v.) coma and the survival time of exposure to hypoxia induced by vacuum pump in mice. Conclusion Yukisunki-tang extracts had a significant effect on Global cerebral ischemia.

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The study of Literature Review on the pathological mechanism and Therapeutic methods of sudden coma -Focused on Different opinion of successive dynastic medical group in HwangJeNaeKyung and SangHanRon- (궐증(厥證)의 병인병기(病因病機) 및 치방(治方)에 관한 문헌적(文獻的) 고찰(考察) -내경(內經)과 상한론(傷寒論)에 대(對)한 역대의가(歷代醫家)의 견해(見解) 차이(差異)를 중심(中心)으로-)

  • Ryu Hyung-Cheon;Kwack Jeong-Jin;Choi Chang-Won;Lee Gang-Nyoung;Lee Young-Soo;Kim Hee-Chul
    • Herbal Formula Science
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    • v.11 no.1
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    • pp.57-90
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    • 2003
  • The result of Bibliographic studies on the pathological mechanism of the sudden coma, we got the conclusion like this. 1. The sudden coma is an acute syndrome that refers to be a sudden fainting, an unconsciousness, an aphasia or a cold clammy limb, and immediately awakes or dies, and awakes in a short time, and if we awake, it doesn't leave over and above a sequela. 2. The clinical presentation of the sudden coma can be summarized as follows : The 1st is a disease raising the sudden death due to unconsciousness accompanied by wry mouth & sudden syncope with coma. The 2nd is simply the state of cold limbs. The 3rd is the meaning of the physique and symptomes of the six meridians. The last is the ancient method of expression in contrast of the beriberi. 3. The pathological mechanism of the sudden coma consists of the toxoid from outside, Qi and Xie, fatigue, damp phegm, the damage from seven emotions and the damage from five mental elements, especially the mental disorder due to the angry energy, causes the problems when the fleming-up of liver fire and the depressed of liver qi raise the physiological disorder. 4. Therapeutic methods of sudden coma are soothing the liver and remove stasis, soothing depression and circulating of the qi, calming the liver and suppressing yang. When that is early stage, at first, we must checking upward adverse flow of the qi after promoting the circulation of qi and awakening, and then, we must regulate excessive deficiency of yin yang by therapy that is based on differentiated in symptoms according to heat & cold, deficiency & excess, and use invigorating herb medicine for supporting vigour.

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DISCOVERY OF VELOCITY INHOMOGENEITIES IN THE COMA, HYDRA, ABELL 2256 CLUSTER OF GALAXIES

  • Kim, Kwang-Tae
    • Publications of The Korean Astronomical Society
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    • v.7 no.1
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    • pp.39-50
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    • 1992
  • A velocity inhomogeneity, which is the regional preponderence of either radial or tangential orbits, is searched with the new technique proposed by Kim (1992) for Coma, Hydra I, and Abell 2256 cluster of galaxies. Conspicuous inhomogeneities are found in the Coma and A2256 which X-ray isophotes are indicative for their underlying potentials being ellipitcal in shape, Even in their central regions, zones that are dominated by radial orbits are clearly distinguishable from that of the tangential orbits, and defining the cluster 'equator' as the direction of maximum elongation of the X-ray isophotes, radial orbits dominate along this direction whereas tangential orbits dominate the 'polar' zones. Merger events that are evidenced in X-ray observations occur in the equatorial zones of Coma and A2256, suggesting preponderence of radial orbits in the zones, which is in good agreement with their velocity structures. On the other hand, the inhomogeneity in Hydra I turns out to be insignificant in the central regions and this is just what is expected from a cluster whose X-ray isophotes is nearly circular. The velocity distribution in regions further out, however, shows significant inhomogeneity and this seems to support the previous results that this cluster is likely to have substructures and velocity anisotropy.

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A case of hypothyroidism concurrent with myxedema coma in a Cocker spaniel dog

  • Kim, Yun-Hye;Kim, Jun-Hwan;Lee, Hyun-Seok;Cho, Ho-Seong;Park, Jin-Ho;Park, Chul
    • Korean Journal of Veterinary Service
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    • v.35 no.2
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    • pp.159-163
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    • 2012
  • A 4-year-old female Cocker spaniel weighing 7.74 kg was presented with a seven-month history of lethargy and skin problems. On the basis of clinical history, physical examination, laboratory tests, electrocardiogram, radiography, ultrasonography, and thyroid function tests, the dog was diagnosed as hypothyroidism. The dog was administered levothyroxine and presented a good response to the therapy. However, uncontrolled for about 6 months, the dog was re-admitted to hospital with depression and three seizure episodes. The dog was diagnosed as hypothyroidism with concurrent myxedema coma and gallbladder mucocele. With fluid therapy and administration of levothyroxine, the dog was successfully controlled for 3 months after starting treatment. This report describes the clinical features and successful treatment of a Cocker spaniel dog with concurrent hypothyroidism and myxedema coma.

Development of a Critical Pathway of Barbiturate Coma Therapy in the Management for Severe Brain Damage (중증 뇌 손상환자를 위한 바비튜레이트 혼수요법의 표준임상지침(Critical Pathway) 개발)

  • Kim, Jung-Sook
    • Journal of Korean Academy of Nursing Administration
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    • v.16 no.1
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    • pp.59-72
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    • 2010
  • Purpose: This study is a descriptive research to analyze prognostic factors of barbiturate coma therapy (BCT) for severe brain damage patients, to develop a critical pathway (CP) based on the results of analysis and to examine the effect of its clinical application. Method: We analyzed medical records of 76 patients who received BCT for more than three days between January 1999 to July 2005. Based on the results of the analysis, we developed a CP and applied it to 12 people during August-December of 2005. Result: By application of BCT CP, the mortality rate decreased from 31.6% to 16.7%. It was found that the period of staying at ICU and total period of hospitalization were shortened by 2.78 (13.9%) days and 16.43 (29.4%) days, respectively. The Glasgow coma scale of the recovery group by CP application was 9.03 (4.64) at 72 hours post of BCT and 14.28 (1.82) at discharge from hospital, and DRS was 6.62 (6.38) points. Conclusion: By verifying clinical validity of the suggested CP, we believe that we have obtained visible effects standardizing the treatment pathway of BCT for brain damage patients.

Evaluation of Mental Status in High-Risk Neonates using Infants Coma Scale (고위험신생아의 의식수준 사정을 위한 Infants Coma Scale의 개발과 적용)

  • Ahn, Young-Mee;Sohn, Min;Lee, Sang-Mi
    • Journal of Korean Academy of Nursing
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    • v.40 no.4
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    • pp.561-570
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    • 2010
  • Purpose: This was a cross sectional descriptive study to introduce the Infants Coma Scale (ICS), describe mental status of high risk infants using ICS and explore the relationships between ICS and clinical variables in infants hospitalized in a neonatal intensive care unit of a university hospital in Korea. Methods: After ICS was developed and tested by the authors, a research nurse evaluated the mental status of the infants using the English version of ICS and obtained clinical information on the infants from their medical records. Results: Data from 88 infants were analyzed. About 60% were male, 90% were preterm births, and 40% had pathologic abnormalities. Their mean gestational age was 32.4 (${\pm}3.50$) weeks and the mean birth weight was 1,842 (${\pm}728.6$) grams. The Cronbach's alpha for the ICS was .78. There was a statistically significant positive correlation between ICS total score and five clinical variables including gestational age, birth weight, 1 and 5 min Apgar scores and respiration status. Conclusion: Mental status is an important parameter in nursing assessment. ICS is a valid and reliable instrument, which clinicians can easily use to evaluate the mental status of high risk infants.

A Study on Sharing of Transmission Antenna for AMPS/CDMA Systems (AMPS/CDMA 시스템의 송신 안테나 공유에 관한 연구)

  • 박세진;박상호
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.23 no.8
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    • pp.2106-2112
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    • 1998
  • In this paper, we propose an antenna sharing scheme between 800 MHz AMPS and CDMA systems using CDMA transmission antenna. We restructured the path of signals such that signals from two systems use AMPS amplifier or CDMA amplifier. The performance of proposed scheme is compared with currently operating system's performance in terms of call connection rate, call completion rate and dropped-call rate after implementing proposed method to the AMPS/CDMA basestation. The results show that the voice quality and call connection of the proposed system is comparable to that of the commercial systems. The number of antenna at the base station can be reduced without performance degradation if the proposed transmission antenna sharing scheme and previously reported receiving antenna sharing technique are used together.

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A pilot study on the formation and evolution of the Intracluster light: Preliminary results of the Coma cluster

  • Yoo, Jaewon;Ko, Jongwan
    • The Bulletin of The Korean Astronomical Society
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    • v.42 no.1
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    • pp.52.1-52.1
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    • 2017
  • Galaxy clusters are the most massive gravitationally bound systems and thus probably the most recent objects to form. One of promising routes to understand the assembly history of galaxy clusters is to measure observable quantities of components in clusters that are sensitive to the evolutionary state of the cluster. Recent deep observations on the nearby clusters show distinct diffuse intracluster light (ICL), that the light from stars are not bound any individual cluster galaxy, however until now this component has not been well studied due to its faint nature, with typical brightness of ~100 times fainter than the sky background. As shown in galaxy cluster simulation studies, the ICL abundance increases during various dynamical exchanges of galaxies such as the disruption of dwarf galaxies, major mergers between galaxies and the tidal stripping of galaxies. Thus, the ICL is an effective tool to measure the evolutionary stage of galaxy clusters. Moreover, the investigation of the ICL evolution mechanism will allow us understand the galaxy evolution process therein. In this pilot study, we target the Coma cluster, where the existing ICL studies are limited only in the central region. With large and uniform deep optical images from the Subaru telescope, available only recently (Okabe et al. 2014), we are developing a robust ICL measurement technique, extracting the ICL surface brightness and color profiles, which will allow us to study the origin of the ICL and its connection to the evolutionary history of the Coma cluster. For the next phase, we plan to utilize the plenty of spectroscopy data from the MMT telescope to compare ICL properties with the star formation history of the brightest cluster galaxies (BCG), and discuss the ICL formation mechanism of the Coma cluster by comparing the distribution of cluster galaxies with the distribution of diffuse light inside the Coma cluster.

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