중·고 육상선수들의 25m 달리기, 반응시간 그리고 동작시간과의 관계

최종환,김태완,최종수,이영희,장민영 忠北大學校 平生體育硏究所 1996 平生體育硏究所 論文集 Vol.8 No.-

This study was to understand the neuromuscular coordination, analyzing the relationship among 25m dash, simple reaction time (SRT) and choice reaction time (CRT) of whole body and finger, and movement time (MT) of middle and high school sprinters (N=24). There were significant relationships among simple reaction time (SRT), choice reaction time (CRT), movement time (MT), and interval(Int) lap times of middle and high school sprinters: the faster SRT, the faster MT, Int 1,2,3,4,5, and 25m running time for all sprinters; The faster CRT, the faster Int 1,2,3,4,5, and 25m running time of all sprinters. Also, same to SRT and CRT by hand(s). While sprinters' MT in high school was significantly related to Int 1,2,3,4,5, and 25m running time, sprinters' MT in middle school was not related to any Int 1,2,3,4,5, and 25m running time. In addition, while 25m running time of high school sprinters was predicted by Int 1(RT+MT), in turn, Int 3,2, gender, SRT and CRT, 25m running time of middle school sprinters was predicted by Int 3, in turn, Int 1(RT+MT), and 2. Even though male sprinters in high school showed faster SRT and CRT female sprinters in lab, male sprinters were not significantly better than female sprinters on reaction time (RT) during starting phase. There was gender difference on each running time of Int 2,3, and 4 (5-15m), but not on RTs

인천 인현동 호프집 화재 피해자 분석

최정태,안무업,안희철,최영미,정재봉,서정열,유기철,이삼우,박석현,조준휘,김성환,김아진,송근정 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Purpose : This study was conducted to develop field triage, transportation, distribution, and prehospital care at a fire disaster by analyzing the victims of the fore that broke out at a bar in Incheon. Method : We analyzed the cases of the victims of a fire in Incheon in Oct. 1999. We determined the primary care hospital, the arrival time, the burn size, the outcome, and the injury type from the medical records, the concerned organ records, and interviews with concerned persons. Result : The total number of victims was 137: 56 prehospital deaths, 1 hospital death, and 80 survivals. The Pearson correlation coefficient between the burn size and the severity was -0.175. There were 121(89.6%) cases of inhalation injury, 59 (43.7%) cases of flame burns, 66 (48.9%) cases of hypoxic brain damage, and 16 (11.9%) cases involving other types of injury. Conclusion : The causes of death of the fire victims were inhalation injury and hypoxic brain damage due to CO poisoning and other toxic inhalants. We propose the use of a simple triage and rapid treatment(START) system and a reassessment the delayed category in fire disasters.

서울대학교 치과대학 구강악안면방사선학교실

최순철,고재희,박태원,유동수,이삼선 大韓口腔顎顔面 放射線學會 1997 Imaging Science in Dentistry Vol.27 No.1

The aneurysmal bone cyst is a nonmalignant reactive bone lesion. Developing rarely in the craniofacial region, and more commonly affecting the long bones and the spine, the lesion has variable etiopathogenic characteristics. The authors diagnosed a 33-year-old female as aneurysmal bone cyst after undergoing clinical, radiological and histological examinations. The characteristics were as followed: 1. The patient complained of pain and swelling of the right preauricular area. 2. The conventional radiograms showed a relatively well defined radiolucent lesion with partially scalloping margin. The cortical bone of the right condyle was thinned and expanded by the lesion. 3. Bone scintigraphy with ?Tc demonstrated ring-like or doughnut-pattern accumulation of radioactivity. 4. On T1-weighted imaging of MRI, the lesion on the right condyle had middle signal intensity. T2-weighted MRI demonstrated multiple high signal intensities separated by septa which had low signal intensity. Finger in ballon appearance was seen. 5. Histologically, the lesion was composed of large sinusoidal blood spaces lined by fibroblasts and histiocytes. Its fibrous stroma consisted of fibroblstic element, multinucleated giant cells, extravasated erythrocytes and focal hemosiderin pigmentation. New bone formation was also observed around larger sinusoidal spaces.

초음파로 진단된 자궁동정맥 기형 2예

최홍준,이해혁,김태희,김정식,남계현,이권해,박성진 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Arteriovenous fistula of uterus is a very rare cause of massive uterine bleeding. However, it is important to make a rapid and precise diagnosis when it does occur, because life-threatening massive vaginal bleeding may occasionally be a symptom of this disease. Uterine curettage or surgical trauma can cause vascular abnormalities, including pseudoaneurysms, acquired ateriovenous malformations, ateriovenous fistulas, and rupture of vessels. The diagnosis is made by angiography, and gray scale ultrasonography, color and duplex doppler ultrasonography, computed tomography, magnetic resonance imaging is helpful. Ultrasonography is the most commonly performed initial imaging examination for evaluation of abnormal uterine bleeding. Color and duplex Doppler US is an appropriate modality for the detection and diagnosis of uterine ateriovenous malformations and for follow-up after embolization. Transcatheter embolization has replaced hysterectomy as the treatment of choice in women wish to retain thier fertility. A case of arteriovenous malformation of the uterus which was diagnosed by ultrasonography. So reported this case with a brief review of the literature.

경상도 전통 마른 명태 식해의 품질특성

최청,구태호,김성,최희진,성태수 한국식생활문화학회 2002 韓國食生活文化學會誌 Vol.17 No.3

The quality characteristics of traditional Kyungsangdo Myungtae (Alaska pollack) sikhae including optimal composition of the product were investigated. In the sensory evaluation, the Myungtae sikhae made from Gampo accepted to be best for traditional Kyungsangdo Myungtae sikhae and it is called standard sikhae. The standard sikhae was prepared as follows: dried-Myungtae 200g, cooked rice 230g, red pepper 92g, garlic 112g, ginger 100g, radish 1.6kg, salt 20g, and malt meal 65g. The Myungtae sikhae made from Gampo showed higher values in total sugar, free reducing sugar, and nitrogen compounds than the Myungtae sikhae made from another locations. The sugar of standard sikhae consisted of four kinds including glucose. And, the contents of free amino acid was increased in the order of glutamic acid, alanine, and methionine. The composition of free amino acid in Myungatae sikhae contained 17 kinds, and the contents was increased in order of glutamic acid, aspartic acid, and proline. The organic acid of standard Myungtae sikhae consisted of 7 kinds including lactic during fermentation. The contents of citric acid, succinic acid, and lactic acid gradually increased during fermentation, and especially, increasing of lactic acid remarkably increased than the different organic acid.

Serratia liquefaciens AL-11이 생산하는 Alkaline Lipase의 특성 및 작용양상

최청,김태완,안봉전,김영활,손준호,김성,최희준 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.1

본 효소의 최적 반응온도는 약 45℃이고, 최적 pH는 10.0 정도였고, pH 7.0~10.0 범위와 30~50℃의 범위에서 안정하였다. 금속이온중 Mn^2+, Ca^2+ 등에 의하여 활성이 증대되었으나 Fe^2+, Pb^2+와 Zn^2+ 등에 의해서는 효소 활성이 저해되었고, 효소활성 저해제 중 ethylenediaminetetraacetic acid(EDTA)에 의해 강한 저해작용을 나타내어 본 효소는 효소분자 중 금속이온이 관여하는 것으로 추정되었다. 효소반응 처리한 olive oil 가수분해물을 박충크로마토그래피 분석한 결과 Serratia liquefaciens AL-11이 생산하는 지방분해효소는 기질특이성이 비특이적이었으며, sodium cholate, sodium edoxychol-ate, sodium taurocholate 등의 담즙산염에 의해 효소활성이 증대되었다. The optimum temperature and pH for the enzyme activity were 45℃ and 10.0, respectively. The enzyme was stable in a pH range of 5 to 10, and 62% of its activity was lost on heat treatment at 60℃ for 20 min. The activity of the purified enzyme was inhibited by Fe^2+, Zm^2+ and Pb^2+, and slightly activated by Mn^2+ and Ca^2+. γ-Chloromercuribenzoic acid, 2,4-dinitrophenol and H_2O_2 did not show inhibitory effect on the lipolytic activity of the alkaline lipase but ethylenediaminetetraacetic acid inhibited the enzyme activity. This suggested that the enzyme have metal group in its active site. Sodium salts of bile acids stimulated the enzyme activity. Analysis of hydrolyzates of olive oil after the lipase reaction revealed that Serratia liquefaciens AL-11 produced non-specific lipolytic enzyme.

조직구성 수성망상증 2예

최연수,박일,죄희충,김원식,양태영,허경,안기완,정춘해 조선대학교 1993 The Medical Journal of Chosun University Vol.18 No.2

Histiocytic medullary reticulosis (HMR) is a malignant noeplastic process, with tumor cells belonging to the histiomonocytic line, and originally described by Scott and Robb-Smith in 1939 characterized by its acute onset, progression to death within a few months and its clinical features are fever, lymphadenopathy, hepatosplenomegaly, jaundice, and purpura common laboratory findings are characterized by severe anemia, leukopenia, thrombocytopenia and histologically by systemic progressive invasion of morphologically atypical histiocytes or of their precursor. 61 and 37-year-old males were admitted with camplaints of high fever and chilling sensation and were treated by cyclophosphamide, vincristine, prednison and antiobiotics, but patients all died 17 and 14 days after admission due to probably sepsis and respiratory failure.

CRP* 의존성 maltose 대사 촉진 유전자 sfs4의 클로닝 및 염기배열 결정

최용락,정희태,조무제,정수열 東亞大學校附設遺傳工學硏究所 1996 遺傳工學硏究 Vol.- No.3

CRP (cAMP receptor protein)은 cAMP와 결합하여 cAMP-CRP 복합체를 형성하여 전사조절의 조절인자로서 작용한다. crp 유전자에 변이를 도입하여 cAMP의 비존재 상태에서 cAMP-CRP와 비슷한 기능을 가진 crp* 유전자가 도입된 대장균 MK2001 (crp*¹, cya::km)을 숙주로 사용하여 cAMP 혹은 cGMP의 비존재하에서도 mal 유전자의 발현을 촉진시키는 유전자 sfs (sugar fermentation stimulation) 수 종을 클로닝하였다. 본 실험에서는 이미 밝혀진 nlp (Ner like protein) 유전자와 같이, sfs의 새로운 유전자를 탐색하여, 그 중 sfs4의 2126bp 전 염기배열을 결정하고, 잠정적인 sfs4의 promoter 영역에는 CRP 단백질과의 결합 DNA 공통 염기배열(5' AAT TGTGA ACACCA TCACC CGT 3')이 존재함을 확인했다. lacZ 융합 유전자를 작성하여 TP2010R1과 MK2001의 균주에서 cAMP를 첨가할 경우 각각 2.3배, 1.8배의 β-galactosidase 활성이 증가 하는 것으로 보아 sfs4는 cAMP-CRP에 의해 발현 조절을 받는 것으로 나타났다 In Escherichia coli, CRP forms a complex with cAMP and acts as a transcriptional regulator of many genes, including sugar metabolism operons. The E. coli MK2001, which is introduced the altered crp*¹, is functional in the expression of lac, ara and man, in the absence of cAMP. However, the expression of mal gene is fully activated by the addition of cAMP or cGMP. The object of the study is cloning of the sfs (sugar fermentation stimulation) genes, which was involved in regulation of mal gene expression with the altered crp*¹gene, and structural analysis and characterization of the genes at the molecular level. We have cloned 5 different E. coli genes which stimulate the maltose metabolism in a crp*¹, cya::km (MK2001) background. Newly identified genes were designated as sfs. One of the sfs genes (pPC1), located at the 53.2 min map position in the E. coli chromosome, was further analyzed. Expression of the genes, which is involved in maltose metabolism, malQ (amylomaltase), was increased to 5.8-fold in the presence of a plasmid, pAP5, containing the subcloned sfs4 gene. The nucleotide sequence of a common 2,126bp segment of the pPCM1 was determined and two open reading frames (ORF1 and ORF2) were detected. The ORF1 encodes the sfs4 gene and ORF2 encodes a truncated protein. Potential CRP binding site is located in the upstream of the putative promoter in the regulatory region. Expression of the cloned sfs4 gene was positively regulated by the cAMP-CRP complex.

非晶質滋性合金薄帶의 滋歪測定에 관한 硏究

崔熙太,愼鏞璡,徐康壽 明知大學校 産業技術硏究所 1989 産業技術硏究所論文集 Vol.8 No.-

This paper is studied on the measurement of magnetostriction of an alloy ribbons tensile force, via measuring the response ar the double frequency of the driving field frequency. The experiments with both crystalline magnetic material,(??)-Fe and amorphous magnetic material. ??, proved that the possibility in this paper can measure magnetostriction with ease and high accuracy.

光彈性 및 有限要素法에 依한 Dove-tail Notoh의 應力集中에 關한 硏究

崔圭夏,趙熙燦,安台煥 충주대학교 1990 한국교통대학교 논문집 Vol.24 No.-

When a load is put on the parts of the rapidly changing section area like in notch, fillet, keyway, screwthread etc, there may occur some stress concentration, crack and fracture in the structures of machines, buildings, bridges, ships, aircrafts, industrial plant machines, atomic power plant machines and the machines for civil engineering architecture or agriculture. Many researchers such as Neuber, Frocht, Vicentini, Flynn etc. have tried to find out the cause of fracture by photoelastic experiments. When Tuner settled the aircraft structure analysis by finite element method in 1956. Agyris, Ritz, C.A. Felippa, J.T. Oden, Zienkiewicz etc. extended the finite element method to wide applicaton to hydrodynamics, electric field, thermal transmission, underground water, soil, atomic technology, the ground, biotechnics, and even to the stress concentration problem which is one of the machine design field. There are some struchural analysis methods of the strength of materials, photelastic and the finite element method. They have the same object for design of strength and stiffness, but each method and priciple is very different. In this paper I studied the stress concentration and the stress distribution on dove-tail notch by photoelastic and finite element method and tried to show the relasation of stress concentration.