SM570, POSTEN60 및 80 강재의 피로균열성장특성

정영화,김익겸,강성립,남왕현,김은성 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.A

In this study, a series of fatigue tests are carried out in order to estimate quantitatively the characteristics of fatigue crack growth rate for high strength steels of SM570, POSTEN60, and POSTEN80 steel, that is, the influence on fatigue crack growth rate according to the welding line, the characteristics of fatigue crack growth according to the welding method and the kinds of steel, and the characteristics of fatigue crack growth for base metal, heat affected zone and weld metal. From the test results, in case that the notch if parallel to welding line, it knows that the retardations of fatigue crack growth ramie in crack tip at early stage increase remarkably than in case that the notch is perpendicular to welding line due to compressive residual stress. And the characteristics of fatigue crack growth rate according to welding method are that the dispersion of fatigue crack growth rate in case of FCAW method is smaller than that of SAW method. Also, it knows that the fatigue crack growth rate converges in high stress intensity factor range.

부산시 일개구 지역주민의 위암선별검사 수검 및 반복수검 실태 및 관련요인조사

정인숙,배은숙,천동환,전진호,이화자,박남희 韓國保健敎育.健康增進學會 2003 보건교육건강증진학회지 Vol.20 No.1

The importance of repeat screening for stomach cancer is well known to decrease deaths from stomach cancer. This study was aimed at assessing practice behaviors and to identify related factors in the aspects of demographic factors, health status and cancer risk recognition, attitude to cancer screening, health behaviors, and inhibiting or facilitating factors to stomach cancer screening in an urban area. Data was collected through self-administered questionnaires from 403 people aged 40 to 69 years from April 23th to May 15th, 2002. Practice behaviors were classified as :"ver"r "ver"and "peat"r "t repeat"rouped based on a recent 5 year screening history. The results were as follows: 1. Among the 403 subjects: "e ever group"as 23.8% and "e repeat group"as 4.0%. The rates of screening were 20.5% for men, 27.8% for those women, and 27.3% for aged 40-49, 24.5% for those aged 50-59, 19.0% for those aged 60-69. The rates of repeat screening were 4.0% for men, 4.1% for women, and 2.9% for those aged 40-49, 6.3% for aged 50-59, 2.5% for those aged 60-69. 2. The main factors associated with adherence to gastric cancer screening were education(post high school vs below : OR=2.44), previous cancer screening(yes vs no : OR=2.61), belief in personal health(no vs yes : OR=2.72), health status(unhealthy vs healthy : OR=3.40), possibility of cancer compared to others(low vs not low : OR=2.56), and regular exercise(yes vs no : OR=2.94). The main factor associated with adherence to gastric cancer repeat screening was other cancer screening (yes vs no : OR=6.33). Consequently, there is a need to change the recognition of the importance and necessity of stomach cancer screening in healthy conditions through health education, and to perform multiple screening tests each visit.

형질전환 제초제저항성 벼 밀양 204호의 농업적 특성

정응기,이기환,원용재,박향미,전남수,최준호,구연충,한창덕,은무영,김태산,남민희 Plant molecular biology and biotechnology research 2005 Plant molecular biology and biotechnology research Vol.2005 No.

This study was conducted to investigated the major characteristics of genetically modified rice of "Milyang 204" originated from Dongjinbyeo compared to a non-transgenic rice varieties Dongjinbyeo and Junambyeo. Basta resistant transgenic rice lines carrying bar gene produced by the Yeongnam Agricultural Research Institute were evaluated for their agronomic characters. The transgenic Japonica rice of "Milyang 204" showed inferior phenotypic traits compared to a non-transgenic rice variety Dongjinbyeo and Junambyeo. On the basis of UPOV (Union Internationale Pour la Protaection des Obtentions Vegetables) and NSMO(National Seed Management Office) the transgenic "Milyang 204" showed difference in some traits out of some agronomic traits, such as leaf color, angle of flag leaf, number of spikelets, culm length, white core and white belly compared to the nontransgenic varieties rice.

보험심사간호사가 지각한 사회적 지지가 소진에 미치는 직접효과 및 완충효과

정순임,이은남,송영선 대한간호행정학회 2006 간호행정학회지 Vol.12 No.3

Purpose: The purposes were to survey the level of work stress, social support, burnout of insurance review nurses and to measure the main & buffering effect of perceived social support on burnout. Method: The samples were 285 insurance review nurses who were registered in Review Nurses Association of Korea at the period of 25 July and 12 August in 2005. Data were analyzed by using of t-test, Pearson's correlation, stepwise multiple regression, two-way ANOVA. Results: There were significant differences of burnout according to the work experience, position, and work satisfaction of insurance review nurses. Among the variables explaining the level of burnout of review nurses, the most significant variable was work stress, followed by current work satisfaction, social support, position and total variance explained was 40.8%. For the analysis of the buffering effects of perceived social support on work stress and burnout, the interaction between work stress and social support was not significant. Conclusions: It is necessary to construct the social support system and to reduce the work stress in order to reduce the level of the burnout of insurance review nurses.

흰쥐에서 심정지후 Pentoxifylline이 뇌의 허혈-재관류 손상에 미치는 효과

정시경,김영민,오동렬,최경호,박승현,이운정,박규남,유은영,이원재,김세경 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Background: Two major events occurring in the cerebral hemodynamics after successful resuscitation from cardiac arrest are reactive hyperemia and postischemic hypoperfusion. In this study, we examined the effect of Pentoxifylline(PTX) on the rat brain following cardiac arrest. Methods: Fourteen rats were anesthetized and artificially ventilated. Cardiac arrest was produced by chest compression and clamping of tracheal tube for 3 minutes in ketamine anesthetized rats. Circulation was restored by standard cardiopulmonary resuscitation methods. In 7 rats, PTX 10mg/kg was infused at 10min after cardiac arrest(PTX group). In the other 7 rats, same amount of normal saline was infused(control group). Results: In both groups, hemodynamic variables, neurologic deficit(ND) score and histopathologic findings of hippocampal CA1 neurons were observed. Hemodynamic variables and ND score were not significantly different between two groups. Delayed ischemic neurons of hippocampal CA1 were decreased in PTX group(2.2±2.4%) compared with control group(9.1±1.2%). Conclusions: We conclude that PTX prevented development of delayed ischemic neurons in hippocampal CA1 after cardiac arrest. PTX may be useful in emergency situations following cardiac arrest.

능력증강전략을 활용한 자조관리과정이 류마티스관절염 환자의 능력증강과 신체적, 심리적 기능에 미치는 효과

이은남,최은옥,황은정 성인간호학회 2003 성인간호학회지 Vol.15 No.3

Purpose : The purpose of this study was to examine the effects of a six week self-help empowerment strategy program on the empowerment status, pain intensity, physical function, joint flexibility and depression status in rheumatoid arthritis patients. Method : The subjects of the study consisted of a convenience sample thirteen rheumatoid arthritis patients. Data was collected from July to November 2001. All patient received a self-help empowerment strategy program, once a week for six weeks. Result : After receiving the self-help empowerment strategy program, the empowerment status increased significantly, the pain intensity and the depression score decreased significantly and the level of physical function significantly improved but the flexibilities of shoulders, knees and ankles were not significantly change. Conclusion : Further studies need to be done to determine the feasibility of implementing empowerment strategy and its possibility as an effective intervention program for decreasing pain intensity and depression score and improving the physical function.

병원급식 체계에 관한 조사 연구

이정윤,서정숙,방병호,정은자,강남이,이진영 서울보건대학 1995 서울보건대학 부설 병원경영연구소 논문집 Vol.1 No.1

This study was conducted to evaluate the hospital foodservice management practices in Seoul and to suggest the guideline for the effective foodservice management. Questionnaire survey method were used in this study. Questionnaire were administered to dietitians in twenty hospitals. Data were analyzed for frequency, percentage, χ^(2)-test, and one-way ANOVA using SAS PC Package program. The results were summerized as follows : The number of dietition were less than the required number for efficient foodservice. Centralized foodservice method was adopted in most hospitals and conventional foodservice system was taken in all the hospitals. The space of a kitchen and a dining room were confined and sanitary facilities and working condition revealed problems. Equipped facilities in surveyed foodservice operations were assessed as the insufficient condition, especially, efficient facilities such as a cutting machine were scarecely make up.

학교 밖 수학교육이 학교 수학교육에 미치는 영향

이점남,정은실 晋州敎育大學校 科學敎育硏究所 2001 科學敎育硏究 Vol.27 No.-

After the Constitutional Court decided that the anti-extracurncular law is unconstitutional, outside-school education is prospering. Mathematics serves as a main object of this kind of education. Mathematics education outside schools becomes more and more fervent because of anxiety that learning retardation in a ceratin period can result in learning in ability on the basis of the systematic nature of the curriculum. This study is designed to shed light on the influences of mathematics education outside schools. The findings dependent upon the statistical work of the researcher were analyzed on the basis of differences by group in terms of frequency and percentage. The researcher came to the following conclusions. First, the achievement of students who receive mathematics instructions outside schools turn out to be relatively higher than their counterparts. This is no wonder because more the former invests more time in mathematics. Second, mathematics education outside schools is popular among students and their parents. Third, mathematics education outside schools can do harm to the emotional aspects of the subjects' personalities. Fourth, mathematics education outside schools tends to make students and their parents distrust school education. Fifth, mathematics education outside schools can act as a deterrent to the development of the nation in the long run. Because mathematics education outside schools aimed at moving ahead of others can impede the development of the nation. The researcher would like to suggest that school education should be activated and that mathematics education outside schools should be further explored and enhanced, and that 'social consensus' should be formed among parents, teachers and student? on mathematics education outside schools. The researcher should like to suggest that those concerned should make the utmost efforts to form a new relation between outside-school education and school education by regarding mathematics education outside schools as a type of 'education'.

정신분열병과 기분장애의 Cavum Septi Pellucidi에 관한 자기공명영상 연구

신상은,강민희,김철응,이정섭,배재남 대한신경정신의학회 2000 신경정신의학 Vol.39 No.4

연구목적: 뇌자기공명촬영술을 이용하여 정신분열병 환자와 기분장애 환자, 대조군의 Cavum Septi Pellucidi를 측정하여 정신분열병과 기분장애에서 생물학적인 원인 중 하나인 신경 발달학적 가설을 알아보는데 있다. 방법: 34명의 정신분열병 환자와 18명의 기분장애 환자, 22명의 대조군에게 자기공명촬영술을 시행하여 CSP의 출현 빈도 및 CSP의 크기에 따른 출현빈도를 비교분석하여 다음과 같은 결과를 얻었다. 결과: CSP의 출현 빈도는 정신분열병 환자에서 61%, 기분 장애환자에서 61%, 대조군에서 41%로 나타났다. T1 강조 축상 영상에서 가장 크게 보이는 단면에서 가로로 가장 긴 부분의 길이가 3mm 이상으로 정의한 큰 CSP의 출현빈도는 정신분혈병환자에서 24%, 기분 장애 환자에서 11%, 대조군에서 5%였고 정신분열병, 기분장애, 대조군의 순으로 높은 빈도를 보였으나 통계적인 유의성은 없었다. 결론: 정신분열병, 기분장애, 대조군의 순으로 큰 CSP의 빈도가 높은 경향성은 확인할수 있었으나 통계적으로 유의한 차이는 아니었다. 그러나 본 연구는 여러 가지 제한점이 있었기 때문에 신경발달학적 가설을 알아보기 위해서는 향후 환자수를 확대하고 보다 정교하게 고안된 연구가 필요하다. Objectives: This study was designed to verify neuro-developmental hypothesis of schizo-phrenia and mood disorder. Methods: We performed Brain Magnetic Resonance Imaging study in 34 schizophrenic patients, 18 mood disorder patients and 22 controls and compared the incidence and the size of carum septi pellucidi(CSP). Results: The incidences of CSP in schizophrenia, mood disorder and controls were 61%,61%, and 41%, respectively. The incidences of large CSP, defined as largest diameter larger than 3mm in T1-weighted image, were 24% in schizophrenic patients, 11% in mood disorder patients, and 5% in controls. But they didn't show statistically significant differences. Conclusion:We could find the tendency that the incidence of CSP was high as following order ; schizophrenia, mood disorder, controls. But it was not statistically significant difference. To verify neuro-developmental hypothesis, we need larger pool of patients and better study design.

정신과 폐쇄 병동 환경 평가에 영향을 미치는 임상변인 : 치료의 질적 향성을 위한 예비적 연구 The Preliminary Study for Promoting the Quality of Psychiatric Inpatient Treatment

서정석,류은정,이상미,한미희,최귀순,손인기,남범우 건국대학교 의과학연구소 2003 건국의과학학술지 Vol.13 No.-

Purpose: IS prelminary study was designed to assess the clinical variables influencing on the ward atmosphere in psychiatric closed ward and to promote the quality of psychiatric inpatient treatment. Method: 41 psychiatric inpatients were selected in Chung-ju hospital, Konkuk university. Ward Atmosphere Scale(W AS) was used to evaluate patients' perception of ward milieu. WAS score were compared among subgroups with respect to the clinical variables such as duration of admission, frequency of admission, and diagnosis. Results: Significantly, patients who have hospitalized for 1 month to 2 months reported lower score of WAS and patients who have hospitalized for longer than 2 months reported higher score of WAS. The relationship between educated levels and WAS score was not significant. First admitted patients reported significantly lower score of WAS. Bipolar patients reported significantly higher score of WAS and alcohol related patients reported significantly lower score of WAS. Conclusion: The 1st admitted patients, patients with alcohol problem and educated patients were had less satisfied with psychiatric closed ward. Thus, by considering these factors, more specified therapeutic approach and plan should be conducted.