태아 영아의 생존 한계의 변화에 대한 연구

최창원,황종희,심재원,김성신,고선영,이은경,장윤실,박원순,Choi, Chang Won,Hwang, Jong Hee,Shim, Jae Won,Kim, Sung Sin,Ko, Sun Young,Lee, Eun Kyung,Chang, Yun Sil,Park, Won Soon 대한소아청소년과학회 2003 Clinical and Experimental Pediatrics (CEP) Vol.46 No.12

Purpose : To determine the change in the limit of viability in fetal infants and the incidence of major complications in neonatal intensive care unit(NICU) at Samsung Medical Center(SMC). Methods : Sevety-three infants weighing less than 800 g at birth and 117 infants born earlier than 27 weeks gestational age, who were admitted to NICU at SMC between November 1994 and December 2002, were enrolled. Their medical records were reviewed with a focus on the survival and major complications, including chronic lung disease, retinopathy of prematurity, intraventricular hemorrhage, and periventricular leukomalacia. The limit of viability in fetal infants was defined as the birth weight or gestational age at which a 50% survival rate is reached and the incidence of major complications were compared by period(period I : Nov. 1994-Dec. 1998, period II : Jan. 1999-Dec. 2002). Results : The limit of viability in fetal infants was markedly lowered from birth weight range of 800-900 g or gestational age range of $26^{+0}-26^{+6}$ weeks in period I to birth weight range of 600-700 g or gestational age range of $24^{+0}-24^{+6}$ weeks in period II. The incidence rates of major complications at the limit of viability were all less than 50% in period II. There was no definite trend toward increased incidence of major complications as birth weight get smaller and gestational age get younger. Conclusion : Our results indicate that at present, fetal infants whose body weight is over 600 g, or whose gestational age is over 24 weeks should be resuscitated vigorously. The risk of major complications at this birth weight or gestational age seems to be not greater than that at a bigger birth weight or an older gestational age.

전남 신안지역어의 어휘 연구

최창원 ( Choi Chang-won ) 한민족문화학회 2018 한민족문화연구 Vol.63 No.-

This article’s purpose is to study Sinan regional vocabulary in Korean. It discussed the differences between Standard Korean language to Sinan regional vocabulary, such as etymological difference, stem extension/reduction, and euphonic changes. Firstly, there are the etymological differences between Standard Korean langage and Sinan regional vocabulary: ① Sino-Korean words in Korean Standard Language vs. Native words in Sinan regional vocabulary, ② Native words in Standard Korean Language vs. Sino-Korean words in Sinan regional vocabulary, ③ Native words in Standard Korean Language vs. different native words in Sinan regional vocabulary, ④ Metaphorical expressions in Sinan regional vocabulary, and ⑤ Onomatopoeia words in Sinan regional vocabulary. Secondly, there are the differences from stem extension and stem reduction: ① ‘i(으)’ vowel addition to the stem, ② the extension of ‘Xp(ㅂ)-’ into ‘Xup(웁)-’ when the allomorph ‘Xp (ㅂ)-’ and ‘Xu(우)-’ are unified ‘Xu(우)-’ in the so-called ‘p(ㅂ)’ irregular verbs stems. ③ derivational stems which are combined the suffixes. ④ assimilation or reduction on the reduction of the stems of some vocabulary in Sinan regional langauge. Finally, there are the difference in terms of euphonic changes, such as the changes of consonants ① ‘β(ㅸ)’ and ② ‘z(ㅿ)’, the noun stem final ③ ‘ch(ㅊ)’ and ‘kh(ㅋ)’, ④ vowel rouding and ⑤ the noun stem final ‘Vy’.

ATM 트래픽 특성을 고려한 트래픽 쉐이핑 기법

최창원,김태윤,Choi, Chang-Won,Kim, Tai-Yun 한국정보처리학회 1995 정보처리논문지 Vol.2 No.5

ATM 트래픽의 다중화시 셀 지연 변경(cell delay variance)에 의한 트래픽의 특성 변화로 인하여 셀밉집 현상과 셀 분산 현상이 발생된다. 이러한 현상들은 셀 스트림 의 버스티니스를 증가시키고 네트워크의 폭주 상태를 유발하게 된다. 따라서 입력 스 트림을 일정한 간격으로 네트워크나 트래픽 제어 기능으로 전송하는 트래픽 쉐이핑 기능이 필요하다. 기존 방법들의 대부분이 입력 트래픽을 동일한 특성을 갖는 트래픽 으로 간주하여 연구를 수행하였지만, 본 연구에서는 입력 트래픽을 손실과 지연의 관 점으로 트래픽 특성을 고려한 트래픽 쉐이핑 기법을 제안한다. 입력 트래픽의 특성을 고려한 쉐이핑 모델과 알고리즘을 제시하고 셀 지연 변경의 크기에 따른 트래픽 영향 을 연구한다. 제안된 기법을 가상 스케쥴링 기법(virtual scheduling algorithm)과 비교하여 쉐이핑 기법의 효율성을 평가한다. 실험 결과 제안된 기법이 지연에 민감한 트래픽인 경우 약 12%의 평균 지연의 감소와 손실에 민감한 트래픽인 경우 11%의 버 스티니스의 감소를 보였다. In ATM traffic multiplexing, the cell clumping and the cell dispersion are occured due to the cell delay variance(CDV) which changes the traffic characteristics. These cell variances increase the burstiness of t.he cell streams and make the network congested. The function of the traffic shaping is necessary to transmit the input streams into the networks or into the traffic policing schemes with some intevals. Most of the existing studies regard the input traffics as the traffic with the identical characteristics. In this study, the traffic shaping is processed by considering the traffic characteristICS with t.he loss-sensitive traffic and the delay-sensitive traffic. The traffic shaping model and the traffic shaping algorithm which considers the" characteristics of input streams have been presented. The traffic effect On t.he CDV size is also studied. The proposed scheme is compared to Virtual Scheduling Algorithm(VSA) and the efficiency of the proposed scheme is evaluated. According to the simulation results, t.he mean delay is decreased about 12% in delay-sensitive traffic and the traffic burstiness is decreased about 11 % in loss-sensitive traffic.

말초신경병증으로 추정되는 비증(痺證) 치험 1례

최창원,Choi, Chang-Won 대한한방내과학회 2009 대한한방내과학회지 Vol.30 No.3

Peripheral neuropathy is a disease of multiple Peripheral nerves. Tingling, pins-and needles, numbness, burning and raw sensation are symptoms of peripheral neuropathy. These symptoms are frequently complained by patients who suffered from obstructive syndrome of Ki and blood (痺證). This case was reported to evaluate the effects of oriental medicine therapy on a patient with obstructive syndrome of Ki and blood (痺證). The subject was a female patient who had obstructive syndrome of Ki and blood (痺證). She complained of calf pain, cold sense, walking discomfort, insomnia, dyspepsia, anorexia etc. We administered the medicine with dispeling the cold pathogenic factor (寒邪), adjusting the constructive and defensive energy (調營衛), tonifying the Ki and blood (補氣血) by stage. After the treatment, the symptoms improved. This case suggests that oriental medicine therapy can be applicable to improve in symptoms with Peripheral neuropathy.

Comparison of Cytoplasmic Inclusions Induced by Maize Dwarf Mosaic Virus Strain A and B

최창원,Choi, Chang-Won,Gardner, Wayne S. Korean Society of Electron Microscopy 1994 Applied microscopy Vol.24 No.2

Comparative ultrastructural studies of sorghum (Sorghum bicolor L. Moench) cultivar (cv.) HOK and cv Pioneer 8680 leaf cells separately infected with maize dwarf mosaic virus (MDMV) strain A and B, respectively, revealed the formation of numerous cylindrical inclusions in both cross and longitudinal sections. The MDMV-A and -B were distinguished by the presence or absence of specific inclusion bodies in the cytoplasm. Electron microscope revealed the presence of pinwheels, bundles, scrolls, and laminated aggregates in Pioneer 8680 sorghum leaf cells infected with MDMV-B while no laminated aggregates were found in cells of HOK sorghum leaf cells infected with MDMV-A. Differences in the ultrastructure of cylindrical inclusions between two strains of MDMV, especially with respect to laminated aggregates, have been morphologically indexed to classify potyviruses into subdivision. The presence of laminated aggregates may be assigned to subdivision III while the absence of laminated aggregates is assigned to subdivision I. These variations of structures associated with cylindrical inclusions appeared virus-specific inductions and may be represented the morphogenesis of inclusion bodies following development of infections.

역대의가(歷代醫家)들의 허노(虛勞)에 관한 문헌적(文獻的) 고찰(考察) - 간노(肝勞)를 중심(中心)으로 -

최창원,이강녕,이영수,김희철,곽정진,Choi Chang-Won,Lee Gang-Nyoung,Lee Young-Soo,Kim Hee-Chul,Kwack Jeong-Jin 대한한의학방제학회 2002 대한한의학 방제학회지 Vol.10 No.1

From the 24 kinds of literature on the Consumptive disease, it can be concluded as follows. 1. The consumptive disease is the Imparement of deficiency type due to overstrain. it is a general term for these all symptom such as and Deficiency of primordial Qi and Essence of life and blood. 2. The excessive fire due to Yin-Deficiency and the injury of spleen-stomach is accounted much of the cause of Consumptive disease. 3. The main cause of the Hepatic asthenia are the Anger, Consumption and over-thinking. 4. The symptoms of the Consumptive disease are mainly caused by the functional disorder of Liver taking charge of tendons. storing and regulating blood, Heart being in charge of blood circulation. taking charge of mental activities. Spleen taking charge of muscles, transforting and transforming nutrients. Lung taking charge of skins and hairs, taking charge of respirations, Kidney taking charge of bones, storing essence of life. 5. The main symptoms of Hepatic asthenia are flaccidity of muscles and temeons which causes limited movement caused by muscular atonia and the loss of bightness of eyes. 6. The main treatments of Consumptive disease are the invigorating the Spleen-stomach and the invigorating the Kidney and storing essence of life. 7. The treatments of Hepatic asthenia are the moderating the middle and the nourishing the muscles and tendons.

반하후박탕(半夏厚朴湯) 추출물이 생쥐에 유발된 심리적 스트레스에 미치는 영향

임세현 ( Se Hyun Lim ),정현윤 ( Hyun Yun Jeong ),원호영 ( Ho Young Won ),김형우 ( Hyung Woo Kim ),최창원 ( Chang Won Choi ),정향숙 ( Hyang Sook Jeong ),김영균 ( Young Gyun Kim ),조수인 ( Su In Cho4 ) 대한본초학회 2012 대한본초학회지 Vol.27 No.4

Objective : Banhahubak-tang is indicated for globus hystericus, marked by a subjective sensation as if something stuffed in the throat, chest distress, cough or vomiting, greasy whitish, taut and smooth pulse. In this study, the effects of Banhahubak-Tang extract (BHTe) were tested for anti-stress action. Methods : BHTe was extracted by pure water using electronic extractor and then fed to ICR male mice (20±2g) orally with the dose of 100㎎/㎏/day for five days. Mice were exposed to sociopsychological stress by restraining and seeing foot shock stressed mice for one hour for five days. Results : BHTe administered group showed a tendency of decreasing of serum corticosterone secretion when compared with control group, and BHTe administration also significantly up-regulated noradrenaline secretions in the dorsal cortex of brain. Lipid peroxidation of the brain tissues of mice were tested by measuring malondialdehyde, but BHTe showed no significant change. The elevated plus-maze test was designed to detect the effect of anxiolytic drugs, and BHTe administered group showed a significant increase of latency time. Conclusions : These results suggest that BHTe can effectively rid the psychological stress and it`s related diseases.

신체활동중심 집단상담 프로그램 참여가 시각장애아동의 공간지각력에 미치는 영향

최창원(Choi Chang-Won),배광열(Bae Kwang-Youl) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.3

The objective of this study was to investigate the effects of participation in group counselling programs focusing on physical activity on improving and maintaining the spatial perception of children with visual impairments. A total of 10 children with visual impairments were assigned to a group counselling program focusing on physical activity which was adapted to the characteristics of children with visual impairments. The 50 minute-long program was conducted twice a week for two months. The Hill Performance Test on Selected Positional Concepts was used to assess the spatial perception. Pre-tests and post-tests were implemented to observe changes in the spatial perception of the children. Post-tests were made after completing 1 to 16 rounds of the program. A maintenance test was implemented 8 weeks after the completion of the program in the same place. The conclusions of the study are as follows: Participation in the Group Counseling Program Focusing on physical activity had positive effects on improving and maintaining the spatial perception which included body parts' perception and mobility of sub-components of body. This study shows that group counseling programs with a variety of interesting physical activities can be effectively used to improve the spatial perception of children with visual impairments who lack confidence and activeness in physical activities due to their visual disabilities.

스테레오 비전과 팬/틸트를 이용한 방사선 신호의 영상화 모사

최창원(Chang-Won Choi),백승해(Seung-Hae Back),박순용(Soon-Yong Park) 대한전기학회 2013 대한전기학회 학술대회 논문집 Vol.2013 No.10

경북 의성 지역어 활용 어간의 복합형태소에 대하여

최창원(Choi, Chang-won) 국어교육학회 2014 국어교육연구 Vol.56 No.-