위절제술 환자의 표준진료지침 개발 및 적용 효과

김은희,김철규,이순교,김순덕,이혜옥,권정순,이경미,이민미,심순미,유용만,신종식,강은희,이상일,김병식,오성태,육정환,박수길 한국의료QA학회 2003 한국의료질향상학회지 Vol.10 No.2

Background : Gastric cancer is the most common malignant tumor in Korea. surgical operation is one of the major treatment modalities for gastric cancer patients. Therefore, gastrectomy is one of the most common procedures in General Surgery. There were variation in length of hospital stay and medical treatment for gastrectomy between three surgeons at Asan Medical Center. Clinical pathways have received considerable attention as a tool for recucing the medical practice variation, increasing the efficiency of care process, and improving the quality of care. The aim of this study was to evaluate the effect of a clinical pathway for gastrectomy in gastric cancer patients. Methods : The clinical pathway for gastrectomy was developed and implemented by a multidisciplinary group in Asan Medical Center. A computerized clinical pathway program was developed and revised after a pilot test. A total of 145 patients underwent gastrectomy by three surgeons at Asan Medical Center. We compared the length of hospital stay, patient satisfaction, and unplanned readmission rate between the pre-pathway group(n=67) and the post-pathway group(n=78). We also investigated the degree of satisfaction among the physicians and nurses who were main end-users of the clinical pathway. Results : The clinical pathway was applied to all target patients. The average length of hospital stay was shortened from 12.7days to 10.6days(p<0.01). The degree of patient satisfaction with the care process changed from 90.3% to 89.2% after the implementation of the clinical pathway, but the difference was of satistically significant(p=0.761). Unplanned readmission rate was 2.9% in the pre-pathway group. More than 90% of physicians and nurses answered that the clinical pathway had been a useful tool in their medical practice. Conclusions : The findings of the study demonstrated that implementation of the clinical pathway for gastrectomy produced substantial reduction in the length of hospital stay while improving the quality of patient outcomes. The computerized clinical pathway program can be used as one of the powerful patient management tools for reducing the practice variations and increasing the efficiency of care process in Korea hospital settings.

월경전 기분 변화와 출산후 불안-우울 증상간의 상관성

한창수,김용구,이낙우,김 탁,김해중,김 현,조숙행 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.1

To investigate the relationship between premenstrual mood changes and anxiety, and mood symptoms in the perinatal period , questionaire survey was carried out. There was no significant correlation between premenstrual symptom scale value and Edinburgh postpartum depression scale value. And theme was no relationship between premenstrual symptom scale value and state anxiety inventory scale value in the perinatal period. This findings suggest that premenstrual mood changes are not directly correlated with mood changes in the perinatal period.

5G 대역을 이용한 생체이식용 안테나 설계

김해진(Kim Hae Jin),변경수(Byun Gyung Su) 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2

본 논문은 5G 대역을 이용한 생체이식용 안테나를 제안한다. 제안된 안테나는 생체 이식을 위하여 인체에 무해한 물질인 SU-8을 사용하여 설계되었다. 제안된 안테나는 사각 패치 구조로 20GHz에서 동작하고 -15dB의 반사손실과 -0.07dBi의 안테나 이득 특성을 가진다. 제안된 소형 폼 팩터 패치 안테나는 기존 의료분야의 사용 주파수에 비하여 높은 주파수 대역을 사용하여 더 작은 크기를 차지하지만 더 높은 방사 이득의 장점을 가져 향후 생체의학 응용 분야에 적합하다.

횡단성 척수염 2례에 대한 증례보고

김민수,서해경 동의대학교 한의학연구소 2002 동의ㆍ경산 한의학 학술대회 Vol.6 No.-

Objectives : There were few case reports on the treatment of Transverse Myelitis by oriental medicine. We experienced two cases of patients of Transverse Myelitis, who had complaints; motor, sensory impairment and bowel and urinary dysfunction. Methods : There are a lot of similarities between Wejeung(Weizheng;위증) and Transverse Myelitis. We diagnosed that symptoms as Wejeung(Weizheng;위증), and employed Oriental medical treatments; herb-medication, acupuncture, electro-acupuncture, moxa and physical therapy. Results : After oriental medical treatments, clinical improvement of the neurologic impairment was noted. Conclusions : We expected that therapeutic value of treatment of Transverse Myelitis in the oriental medicine will be higher if more clinical studies and researches are accomplished.

청소년의 성의식 및 성실태 조사연구 : 일부 고등학교 재학생과 소년원생을 대상으로

김수련,김초강,이영해 이화여자대학교 교과교육연구소 1998 교과교육학연구 Vol.2 No.1

Recent years, the open attitude to sex has prevailed rapidly. Such trend has a great influence on the adolescents in developing stage. But, current education system is not work efficiently on this problem. So the purpose of this study is to identify the factors of adolescent sexual deviation and to propose one approach to sex education program. This study was surveyed from 1,391 adolescents in high school and juvenile reformatory from Sep. 1 1996. to Sep. 30 1996. They were samples grouped to three categories(academic high school, business high school and juvenile reformatory) and were analysed by each according to category and gender. The major findings are as follows. 1. The individual characteristics of the respondents: In the average age, they were years old, many of them were christian, they had 2.4 brothers and sisters, most of their parents were alive, and most of them answered for their economic status and school score as mid-class. 2. In family circumstances(intimacy with parents, relationship between both parents, and recognition of daily behaviors of adolescents) the index was highest in academic and lowest juvenile reformatory. 3. In school life, the juvenile reformatory students showed lower school adaptability and the higher possibility of keeping bad company. In adaptability girls were better than boys in academic school(p<0.001). The degree of keeping bad company was higher in boys than in girls in business high school(p<0.001). But in juvenile reformatory girls(p<0.05) showed higher degree of keeping bad company more than boys. 4. Juvenile reformatory boys had experienced more sexual media(98.4%) and delinquent behaviors(99.2%) than girls. On the contrary girls had experienced alcohol(87.7%), smoking(95.1%), and drugs(79.0%). 5. In sexual awareness including friendship with the other sex, virginity, controlling sexual impulses, and sexual violences, juvenile reformatory student's score was the lowest (p<0.001). In detail by gender, boys were more often minded to friendship with the other sex than girls. Students having the other sex friends showed better awareness of friendship with the other sex and thought little of virginity. 6. Boys feel the impulse of sex more frequently than girls(p<0.001). On the contrary, surprisingly girls(93.8%) of juvenile reformatory have experienced kiss or hug. In case of intercourse, academic school boys(13.2%), business school boys(22.4%) and juvenile reformatory girls(87.7%) were reported to have experienced sexual intercourse. 7. To the question of the first time of kiss or hug, Academic high school students experienced kiss or hugs in the middle school years for the first time(boys 56.0%, girls 47.4%), business high school boys middle school years also(49.6%), business high school girls high school years(49.4%), juvenile reformatory students experienced kiss or hugs in the middle school years(boys 71.6%, girls 84.2%). Many of respondents thought kiss or hugs as love. After kiss or hugs, many of boys felt good but many of girls felt nothing. The place of kiss or hug were usually parks, video rooms or friends' rooms. Most of their partner were their the other sex friend. 8. Academic and business high school students experienced sexual intercourse for the first time on the high school years usually, juvenile reformatory students middle school years. To the motive of intercourse, academic high school girls were forced to do that but business high school and juvenile reformatory girls because of love. Boys thought that as love too. 9. Logistic regression analysis shows, in case of academic high school, set, smoking, age, awareness of virginity and delinquencies were statistically significant factors for sexual behaviors. In case of business high school, alcohol, smoking and awareness of virginity were statistically significant factors for sexual behaviors. In case of juvenile reformatory, sex, consciousness of friendship with the other sex and sexual violence were statistically significant factors for sexual behaviors.

유한요소법을 이용한 밸브 스프링 리테이너의 형상설계

신혁수, 김동범, 박진근, 이인환, 조해용 충북대학교 산업과학기술연구소 2013 산업과학기술연구 논문집 Vol.27 No.2

A valve spring retainer is a small disc and located at intake and exhaust valve stem of engine. The retainer supports a valve spring and transmits spring force to a valve. Force is applied to the retainer repeatedly by a rocker arm. Durability of the retainer is an important factor of performance. Weight of retainer affect dynamic performance of engine. Therefore, optimal strength and weight of the retainer design are needed. In this study, stress distribution and fracture load of retainer were analyzed by using FEM to design optimal strength and weight. Static load test was simulated by using commercial FEM code DEFORM-3D. Shapes of the retainer to reduce weight were designed and analyzed to verify validity of it. Simulated results and experimental ones were compared

6kW 독립형 풍력발전기의 진동 모니터링 및 분석

김석현,남윤수,유능수,이정완,박무열,박해균,김태형 江原大學校 産業技術硏究所 2005 産業技術硏究 Vol.25 No.A

A vibration monitoring system for a small class of wind turbine (W/T) is established and operated. The monitoring system consists of monolithic integrated chip accelerometer for vibration monitoring, anemometers for wind data acquisition and auxiliary sensors for atmospheric data. Using the monitoring system, vibration response of a 6kW W/T generator is investigated. Acceleration data of the W/T tower under various operation condition is acquired in real time using LabVIEW and is remotely transferred from the test site to the laboratory in school by internet. Vibration state of the tower structure is diagnosed within the operating speed range. Resonance frequency range of the test model is investigated with the wind speed data of the test site.

β-agarase를 생산하는 해양균의 분리 및 효소 특성연구

김문수,김도만,박혜영,강미화,천종훈 전남대학교 촉매연구소 2000 觸媒硏究 論文集 Vol.21 No.-

An agar degrading bacteria was isolated from the south ocean of Korea and was identified as Aeromonas sp. This strain produced the amount of agarase (1.4U/ml) with agar as a carbon source and casamino acid as a nitrogen source. The optimum concentration of NaCl for both cell growth and enzyme activity was 2.5%. The agarase was purified by DEAE-cellulose and hydroxyapatite column chro-matograpy. The purified agarase showed a single protein band upon sodium dodecyl sulfate-polyacrylamide gel electrophoresis(SDS-PAGE) and its molecular weight was estimated to be 50 KDa. The optimal temperature and pH for the enzyme activity were 28℃ and 7.2, respectively. The agarase was stable at pH 6.5 - 8 and 22 - 37℃. The agarase activity was notably inhibited by EDTA, Mn2+, Hg2+, Fe2+ and slightly activated by Na+ and Ba2+.

청소년의 스마트폰 중독과 우울 및 불안과의 관계

김경은,김필송,민주연,박수경,신서인,이지은,정해인,조호정,최정원,최정인 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47

Purpose: The purpose of this study was to investigate the relationships between the degree of smart phone addiction among adolescents and their depression and anxiety levels. Method: In this study, 379 high school students were selected using the convenient sampling method. The instruments used for this study were smart phone addiction measure, the CES-D (Center for Epidemiological Studies-Depression Scale), and the STAI (State-Trait Anxiety Inventory). Data were analyzed using the SPSS 20.0 program with descriptive statistics, t-test, ANOVA with Scheffe test, and Pearson’s correlation coefficient. Result: The mean score for smart phone addiction was 40.45±17.27, depression was 36.56±9.58, state anxiety was 44.00±9.61, and trait anxiety was 45.70±9.75. There were significant differences between the degree of smart phone addiction and the following variables: gender (t=-4.953, p<.001), hours of smart phone use per day (F=12.259, p<.001), types of frequently used features (F=3.485, p=.008), and satisfaction level for smart phone (F=5.18, p<.001). There were statistically significant relationships (p<.001) among degree of smart phone addiction, depression level, and state and trait anxiety levels. Conclusion: The results of this study suggested that there was a significant relationship between smart phone addiction and mental health, specifically, depression and anxiety among adolescents. Further research is needed to develop nursing strategies to provide care for adolescents who frequently utilize smart phones.

집선장치를 이용한 ISDN 기본 액세스 다중화에서의 호손율 계산

梁海權,金仁洙 군산대학교 1988 論文集 Vol.15 No.-

This paper describes the separated line concentrator and the joint line concentrator to multiplex the traffic with different kinds of transmission rates.In multiplexing of ISDN basic access subscribers using these concentrators, this paper shows the increased number of input channels to maintain the acceptable value of blocking probability