융비술시 이식물 삽입을 위한 새로운 기구의 개발

정동학,임정혁,김태만,장태영 대한이비인후과학회 2001 대한이비인후과학회지 두경부외과학 Vol.44 No.9

콩 단백질/펙틴/몬모릴로나이트 나노복합 필름의 특성 및 산소 투과도 연구

정세환,김성철,조규순,신용섭,장상희,홍기헌,이태진,신부영 嶺南大學校 工業技術硏究所 2004 工業技術硏究所論文集 Vol.32 No.2

In this study, Mechanical property, thermal property, watervapor, and oxygen permeability of biodegradable Soy protein/Pectin-montmorillonite nanocomposite, prepared with Na^(+)-MMT, have been studied. X-ray diffraction and TEM experiments an polymer/silicate composite samples demonstrated that the intercalation of polymer chains leads to increase in the spacing between silicate layers. In addition, it were found that the intercalated Soy protein/Pectin/montmorillonite nanocomposite were prepared. It was found that the addition of only a small of clay was enough to improve the thermal stability and mechanical property of Soy protein/Pectin/montmorillonite nanocomposite. watervapor of Soy protein/Pectin/montmorillonite nanocomposite was generally lower than that of Soy protein/Pectin. oxygen permeability of Soy protein/Pectin/montmorillonite nanocomposite was generally lower than that of Soy protein/Pectin.

애엽, 지각, 아교주 및 목향의 투여가 임신중 생쥐의 생식능력에 미치는 효과

정형민,차수경,임정묵,신태은,박찬,장준복,이경섭,송병기 경희대학교 2000 慶熙醫學 Vol.16 No.2

단순 외상 환자에서 퇴원시 설명문이 환자의 이해도에 미치는 영향

장석준,정상원,최성욱,황태식,이한식 대한응급의학회 1996 대한응급의학회지 Vol.7 No.2

The many previous publications have shown the advantages of written discharge instruction over verbal discharge instruction on the basis of comparing the functional illiteracy among emergency department patients. Therefore, authors have conducted a study on the efficacy of written discharge instruction over the verbal discharge instruction of two groups: minor laceration and sprain patients. For the purpose of this study, minor laceration is defined as less than 3 ㎝ laceration on the face or head, or less than 5 ㎝ laceration on extremities. And simple sprains were limited to the extremities. A total of 416 patients who visited Yong Dong Severance Hospital Emergency Care Center were the subject of this study during the period of 2 months from Feb. 1. to Mar. 31. 1996. The study was done prospectively, and patients who entered this study were randomly selected. Simple discharge instruction were made prior to the study and patients were given or verbally told the one of two instruction sets by the emergency medicine resident. After reading or hearing the instructions, each patient was asked to answer four specific questions about them. Statistical significance was examined by t-test and p value of 0.05 or less was considered statistically significant. Mean age for verbal and written instructed group were 26.2 and 25.6 years old. There were 262 and 154 patients in verbal and written instructed group, and the mean score was 2.24±1.20 and 3.42±0.52, respectively. The type of injury was divided into laceration and sprain. Laceration group showed mean score of 2.15±1.23, 3.32±0.51, and sprain group of 2.34±1.16, 3.59±0.50 in verbal and written instruction group, respectively. For the patient younger than 13 years old, discharge instruction was given or described to a guardian. Age less than 13 years old group showed mean score of 2.75±1.11, 3.31±0.48 and more than 13 years old group of 2.10±0.19, 3.34±0.53 in verbal and written instruction group, respectively. The result showed statistical significance between verbal and written instruction group of type of injury and age difference. For the future, simplified written discharge instruction may help and improve the patient`s understanding of the proper management of injury.

사지마비 장애인을 위한 생활환경 제어장치증례 보고

양정인,문혜원,이일영,장태정,정익주 大韓再活醫學會 1999 Annals of Rehabilitation Medicine Vol.23 No.3

한랭노출과 고혈압의 연관성

장태원,김윤규,윤동영,이창희,홍영습,신해림,정갑열,김준연 大韓産業醫學會 2001 대한직업환경의학회지 Vol.13 No.4

Objectives : This study was carried out to suggest preventive methods for hypertension in cold-exposed workers. Methods : In 11 refs·iteration industries, 68 workers working in refrigerated areas more than one time per day were selected as the exposed group, and 68 workers not exposed to cold were selected as the control group. We interviewed the subjects with a questionnaire covering occupational history, and conducted clinical and laboratory tests including measurements of blood pressure and core temperature. Results : The systolic blood pressure in the exposed group(130.0±13.3 mmHg) was significantly higher than that recorded In the control group(118.3±12.1 mmHg), as was the diastolic blood pressure in the exposed group(82.7±8.5 mmHg) versus the control group(77.4±8.7 mmHg). The core temperature in the exposed group(36.1±0.7℃) was significantly lower than that experienced in the control group (36.4±0.5℃). In logistic regression analysis, age, cold exposure severity and milk intake were significant variables, with odds ratios of 5.204(95 % CI 1.440∼18.812), 2.674(95 % CI 1.080∼6.618), and 0.364(95 % Cl 0.141∼0.942) , respectively. Conclusions : Our study suggests that cold-exposed workers have higher a higher risk of hypertension, and that their core temperature is lower. Risk factors affecting hyper-tension of cold-exposed workers include age, cold exposure severity and milk intake. For the prevention of hypertension, cold-exposed workers should minimize cold-exposure time as much as possible.

항진균물질을 생산하는 Streptomyces fimbriatus AF21-3의 분리 및 동정

장주현,김정완,이우윤,윤영준,이경림,김승곤,이태수 인천대학교 2000 基礎科學論文集 Vol.11 No.1

Actinomycetes were isolated from soil to find new antibiotics. An active antimicrobial compound was isolated from the culture filtrate of Actinomycetes AF 21-3. The Actinomycetes strain which showed strong antifungal activity against Candida tropicalis and Microsporum gypseum was identified as Streptomyces fimbriatus and named as Streptomyces fimbriatus AF 21-3.

위장의 Helicobacter Pylori 감염에 따른 위 점막상피세포의 Nucleolar Organizer Regions : 장형의 위선암종과 비교

장태정,김동훈,배한익 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

1995년 3월부터 1995년 12월까지 동의의료원에서 위내시경 검사로 채취된 위 생검 조지절편에서 위염과 소화성 궤양 및 장형(intestinal type) 위선암종으로 진단된 증례 69예를 대상으로 Helicobacter Pylori(H. pylori)감염에 따른 세포증식능을 조사하고 장형 위선암종의 세포증식증과 비교하였다. 세포증식증은 은염색을 시행하여 AgNORs의수로 표시하였다. 이 중 위선암조은 16예, H. pylori감염 양성은 35예, 감염 음성은 18예 였다. H. pylori감염의 판정은 rapid urease 검사 ( CLO검사), hematoxylin-eosin염색 또는 Giemsa염색으로 하였고, H. pylori감염에 따른 염증반응은 H. pylori의 감염 양성군에서 중등도 이상의 중성구 침윤과 만성 염증세포의 침윤이 각각 82.9%(29/35),65.7%(23/35)였다.(P<0.05). 위 점막상피세포의 지저부 및 협부의 AgNORs갯수는 위선암종에서 4.01±0.50, H. pylori 감염 양성군에서 2.84±0.25, H. pylori의 감염 음성군에서 2.49±0.29 였다(P<0.05).H.pylori의 감염 양성군 및 음성군에서 중성구의 침윤에 따른 AgNORs갯수는 중성구의 침윤이 중등도이상인 경우가 2.80±0.24로써 중성구의 침윤이 없거나 미약한 경우(2.60±0.35) 보다 의의있게 높았지만(P<0.05) 만성염증세포의 침윤에 따른 AgNORs갯수는 유의한 차이가 없었다. 위염의 등급과 위염의 활동성 및 집락의 등급을 합친 위염점수가 높을수록 AgNORs갯수는 증가하는 경향을보였다(r=0.38, P<0.005). 그러므로 H. pylori의 감염이 있으면 위 점막에 염증반응이 생기고 이로 인하여 위 점막 상피세포의 세포증식능이 증가하는데 세포증식의 주 원인은 H. pylori자체일 수도 있고 H. pylori감염에 속발된 중성구 침윤일 수도 있다고 추측된다. The number of silver-staining nucleolar organizer regions(AgNORs) per nucleus has been correlated with proliferative rate and ploidy. The mean AgNOR counts of gastic mucosal epithelium in isthmus or base of nonmetaplastic area were examined in 18 Helicobacter pylori (H.pylori) negative cases, 35 H. pylori positive cases and 16 gastric adenocarcinoma of intestinal type. Acute and chronic inflammation of H. pylori positive cases were more serious than that of H.pylori negative cases(P<O.05). The mean number of AgNORs was 2.49±O.29 for H. pylori negative cases, 2.84±0.25 for H. pylori positive cases, and 4.01±0.50 for gastric adenocarcinoma. The difference among the groups was signiftcant(P<0.05). The mean number of AgNORs for those who showed moderate or severe infiltrate of neutrophil(2.80±0.24) was significantly different from that of patients with absent or mild infiltrate of neutrophi1(2.60±O.35)(P<O.O5). There was no difference of mean AgNORs counts according to chronic inflammatory cell infiltrate. A positive association between mean AgNORs counts and gastritis score was prescnt(r=0.38, P<O.OO5). The alteration of replication cycle of gastric mucosal epithelium may be caused by H. pylori infection or neutrophil.

공분산구조분석법을 활용한 통행수단, 활동 및 통행행태에 대한 인과성 평가

장태연,김대영,김정호,권진영 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2002 工學硏究 Vol.33 No.-

Activities done by individual are usually classified into obligatory and discretionary ones. Simple or complex trip pattern is performed as these activities are linked and various travel modes are used. Individuals try to link several trips as a type of chain to save transportation resources such as travel distance or time, which consequently produces complex trip pattern. These changes in urban transportation environment and less studies on activity-based characteristics make difficult to forecast trips resulting from trip linkage behavior. The purpose of study is to analyze possible causal relationships among activities, travel mode choices and travel patterns, assuming that they are directly influenced by individual or household attributes. Two kinds of models are established to achieve this purpose. One is the allocation model for mode choice for activities by three stage least square estimation method under the restricted conditions. The other is covariance structure model(LISREL) to analyze direct and indirect effect among attributes. As a result, the allocation of travel modes is mainly influenced by variables such as gender, education level, marriage, and children under 13 years old. In LISREL, it is shown that those variables well explain an exogenous personal attributes and only family income do an exogenous household attributes. While trip pattern attributes is well reflected by travel mode attributes, it is less reflected by activity attributes.

키토산 구슬을 이용한 가토 연골세포의배양

장의찬,김경환,저호중,이기현,정상인,손태일 대한정형외과연구학회 2003 대한정형외과연구학회지 Vol.6 No.2