급성 골수성 백혈병 환자에서 발생한 다발성 과립성 육종 1 예

권영미,이용구,정선관,유남진,김경년,오경아 대한내과학회 1994 대한내과학회지 Vol.47 No.6

Granulocytic sarcoma, or chloroma is a localized extramedullary tumor mass composed of immature cells of the granulocytic series. It was first described by Burns in 1811, subsequently termed $quot;Chloroma$quot; because of green color sometimes imparted by cellular myeloperoxidase, Dock was the first to note the association of granulocytic sarcoma with acute leukemia, it may by associated with such myeloproliferative disorder as hypereosinoplilia, polycythemia vera, or myeloid metaplasia. Granulocytic sarcoma is now regarded as an omnious habinger of acute myelocytic leukemia (AML), or the onset of blast crisis in chronic myelogeneous leukemia (CML). Granulocytic sarcoma can arise in various locations including the periosteum of the bones, lymph nodes, skin, epidural structures, female genitalia, gonads, breast, gastrointestinal tract, urinary bladder, and kidney. Although its overall incidence is low, the tumor can present in any organ. We report a case of a 18-year-old man who was diagnosed as having multifocal granulo cytic sarcoma in the soft tissue.

Comparison of trophic factors changes in the hippocampal CA1 region between the young and adult gerbil induced by transient cerebral ischemia.

Yan, Bing Chun,Park, Joon Ha,Kim, Sung Koo,Choi, Jung Hoon,Lee, Choong Hyun,Yoo, Ki-Yeon,Kwon, Young-Geun,Kim, Young-Myeong,Kim, Jong-Dai,Won, Moo-Ho Kluwer Academic/Plenum Publishers 2012 Cellular and molecular neurobiology Vol.32 No.8

<P>In the present study, we investigated neuronal death/damage in the gerbil hippocampal CA1 region (CA1) and compared changes in some trophic factors, such as brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF), in the CA1 between the adult and young gerbils after 5 min of transient cerebral ischemia. Most of pyramidal neurons (89%) were damaged 4 days after ischemia-reperfusion (I-R) in the adult; however, in the young, about 59% of pyramidal neurons were damaged 7 days after I-R. The immunoreactivity and levels of BDNF and VEGF, not GDNF, in the CA1 of the normal young were lower than those in the normal adult. Four days after I-R in the adult group, the immunoreactivity and levels of BDNF and VEGF were distinctively decreased, and the immunoreactivity and level of GDNF were increased. However, in the young group, all of their immunoreactivities and levels were much higher than those in the normal young group. From 7 days after I-R, all the immunoreactivities and levels were apparently decreased compared to those of the normal adult and young. In brief, we confirmed our recent finding: more delayed and less neuronal death occurred in the young following I-R, and we newly found that the immunoreactivities of trophic factors, such as BDNF, GDNF, and VEGF, in the stratum pyramidale of the CA1 in the young gerbil were much higher than those in the adult gerbil 4 days after transient cerebral ischemia.</P>

전,후기 노인의 건강행위, 건강상태와 건강관련 삶의 질

정영해 ( Young Hae Chung ),조유향 ( Yoo Hyang Cho ) 대한보건협회 2014 대한보건연구 Vol.40 No.1

연구목적 : 본 연구는 노년 전기와 후기 노인의 건강행위, 건강상태와 건강관련 삶의 질 수준을 파악하고, 관련요인을 파악 하고자 한 것이다. 연구방법 : 2010년 국민건강영양조사 제5기 1차년도 원자료를 사용하여 65세 이상 노인 1,339명을 대상으로 교육, 경제수준, 운동, 흡연, 음주, 만성질병, 성별, 거주지역, 동거인, 주관적건강상태, BMI 및 EQ-5D를 건강설문-검진조사가중치를 사례 수에 맞추어 활용하였으며 SPSS 20.0을 이용하여 분석하였다. 노년전기군(<75세)과 노년후기군(≥75세)을 카이제곱검정과 t-검정으로 비교하였으며, 후진제거방식 회귀분석으로 두 군의 건강관련 삶의 질 관련요인을 비교하였다. 연구결과 : 여성노인이 58.4%로 많았으며, 교육수준은 초졸 이하가 3/4으로, 노년후기군은 여성노인과 초졸 이하가 더 많았고, 노년전기군에는 중졸, 고졸, 대졸이상 노인과 배우자와 함께하는 비율이 많았다. 흡연율 13.3%, 음주율 46.9%, 운동실천율 47.8%, 만성질환율 80.3%이었는데, 노년전기군의 경우 음주와 운동실천율 및 비만이 높았고, 노년후기군은 저체중, 우울증상, 자살을 생각해본 적과 주관적인 건강상태가 유의하게 높았다. 노년전기군의 삶의 질은 노년후기군에 비해 유의하게 높았으며, 삶의 질을 구성한 각 항목은 모두 노년전기군에서 유의하게 낮아 노년후기군보다 삶의 질이 더 좋았다. 노년전기군의 삶의 질 관련요인은 성별, 주관적 건강상태, BMI로 나타났고, 노년후기군에서는 경제수준, 만성질환 유무와 주관적 건강상태가 삶의 질과 관련되었다. 결론 : 노인의 삶의 질을 높이기 위하여, 노년 전기에는 체중관리에 초점을 맞추고 성별에 따라 차별화된 서비스를 제공하며 노년 후기에는 경제상태와 교육수준에 따른 서비스를 제공하고, 전·후기 노인 모두 만성질관관리, 건강관리, 및 일상생활능력 향상을 위한 서비스를 제공되어야 함을 제안한다. Objectives: The purpose of this study was to investigate the difference in quality of life and related factors among the elderly by the young and the old-old. Methods: Elderly data of 1,339 case from National Health and Nutrition Examination Survey (Korea Center for Disease Control, 2010) were analyzed with SPSS 20.0, using complex survey data analysis methods. Most of the instruments were used according to the original survey while some were re-categorized. Gender, education, living area, income status, factors considered to be related to quality of life such as exercise, smoking and drinking habits, existence of chronic diseases, perceived health, and BMI were explored for their relationship with quality of life. Significance level was set to .05. Results: In this study, 58.4% of the subject were female, and approximately 3/4 had education below elementary school. However, there were more female, more elementary school education, and fewer living with significant others among the old-old. Underweight, depression, and suicidal thoughts were more prevalent among the old-old. The old-old perceived their health worse. Quality of life scores were lower for the old-old. In terms of health behaviors, there were more drinking, exercising, and overweight among the young-old. Factors related to quality of life turned out to be gender, perceived health and BMI among the young-old and education, economic status, and perceived health among the old-old. Conclusion: We recommend differentiated health policy and health programs for the young- and the old-old.

유사한 전자상태를 가지는 타이타늄 합금의 영률에 베타 안정화 원소 함량이 미치는 영향

유가영 ( Ga Young Yoo ),박찬희 ( Chan Hee Park ),홍재근 ( Jae Keun Hong ),김승언 ( Seong Eun Kim ),강남현 ( Seong Eun Kim ),염종택 ( Jong Taek Yeom ) 대한금속재료학회(구 대한금속학회) 2013 대한금속·재료학회지 Vol.51 No.4

Previously, Gum Metal (Ti-24(Nb + Ta + V)-(Zr, Hf)-O (at%)) exhibiting an ultralow Young`s modulus, ultrahigh strength and super elasticity was developed by Saito et al., who proposed that three electronic magic numbers, an average electron/atom (e/a) ratio of 4.24, an average bond order (Bo) of about 2.87, and an average “d” electron-orbital energy level (Md) of about 2.45 eV, should be satisfied simultaneously to obtain such “super” properties. The purpose of this study was to find new alloy systems possessing those properties and to examine the effect of beta equivalent content ([Mo]eq) on Young`s moduli of new alloys having the same three electronic numbers mentioned above. It was found that not only three electronic numbers but also [Mo]eq should be considered to obtain a similar Young`s modulus and hardness with respect to the Gum Metal.

유통업의 지식경영 도입 방안에 관한 연구

Yoo,Sang-jin,Cha,Young-han 한국산업경영학회 2002 한국산업경영학회 발표논문집 Vol.2002 No.2

In this study, an effective methodology to introduce knowledge management system into the retail business is suggested by overall analysis of examples those were carried out in business area. Different from existing studies, which focus on theoretical aspect only, this study focuses its attention on theoretical & practical aspect simultaneously and tries to find a long-term & integrated knowledge management strategy. With examining the examples of knowledge management, this study deals with the fundamental conception, the procedure and the organization of knowledge management. Moreover, this study practically analyzes the knowledge management system of the company named "H", one of the retail business companies. By clarifying the problems, which is involved in the knowledge management process of the above company, this study suggests an improvement methodology to introduce and settle down knowledge management system into retail business company for the future. This study has good results in the viewpoint that it gives a definite direction of knowledge management introduction. However, there is some limitation such as the insufficiency of examples and the omission of documented analysis. Therefore, this study leaves some task to be achieved in the future.

국내 상급종합병원과 종합병원 간호사의 정맥주입간호실무지침의 확산정도

은영(Young Eun),구미옥(Mee Ok Gu),조용애(Young Ae Cho),정재심(Jae Shim Jeong),권정순(Jeong Soon Kwon),유정숙(Cheong Suk Yoo5),정영선(Young Sun Jeong),정인숙(In Sook Jung),김경숙(Kyeong Sug Kim),이선희(Seon Heui Lee),서현주(Hyun Ju S 한국근거기반간호학회 2015 근거와 간호 Vol.3 No.1

Purpose: This study was conducted to investigate the extent of diffusion of Intravenous infusion nursing practice guideline among nurses in advanced general hospitals and general hospitals in Korea. Methods: The subjects were 234 nurses who practice the intravenous infusion in 24 advanced general hospitals and general hospitals. Data were collected between October 5 and November 2, 2015 by mail (return rates: 97.5 %). Data were analyzed using descriptive statistics, t-test, and ANOVA with SPSS/ WIN 21. Results: The average guideline diffusion score and levels of diffusion was 3.39±0.58 (level of “use sometimes”). 44 recommendations (46%) were in level of “use always” and 50 recommendations (53%) were in “use sometimes”. Extent of diffusion were significantly different according to present status (F=2.81, p=.040) and education (F=4.35, p=.014). The facilitating factors to use the guideline were education by department of nursing service, convenient composition of guideline and barrier factors were “no time to use the guideline”, “don’t know the guideline” and “there is no guideline at ward”. Conclusion: Extent of diffusion of Intravenous infusion nursing practice guideline among nurses was moderate level. The strategies for promoting the implementation of guideline in clinical practice is needed. Further study of outcome evaluation of guideline implementation will be needed.

Haemophilus influenzae Type b 에 대한 급성 후두염의 치료 경험 2 례

이수영(Soo Young Lee),유상호(Sang Ho Yoo),이기선(Ki Sun Lee),홍미애(Mi Ae Hong),김순남(Soon Nam Kim) 대한소아알레르기호흡기학회 1998 소아알레르기 및 호흡기학회지 Vol.8 No.1

Epiglottitis is an uncommon but potentially life threatening infectious disease in young children. And it is rapidly progressing cellulitis of the epiglottis and adjacent structures that has the potential for causing abrupt, complete airway obstruction. The most common cause of acute epiglottitis is Haemophilius influenzae type b (Hib), therefore in USA, the acute epiglottitis is seen less commonly since the wide spread use of immunization against Hib. In Korea, there has been no report of acute epiglottitis caused by known bacterial organism, and a little investigation of the effects of the immunization against Hib, or Hib related respiratory diseases. In this report, we describe two cases of acute epiglottitis caused by Hib, occurred in non-immunized young-male children admitted to Ajou University Hospital. They had visited to the emergency center of Ajou University hospital with the complaints of acute fever, drooling, dysphagia and severe respiratory difficulties. In both cases, we observed the cherry-red colored, severely swollen epiglottis by the direct laryngoscopic examination. Hib was cultured in blood samples from both two cases, and the patients treated successfully by the 3 days of endotracheal intubation and proper antibiotics therapy without any complications such as pneumonia, meningitis, osteomyelitis, or pericarditis.

제대 간호장교의 재취업 경험에 대한 탐구

유명란 ( Myoung Ran Yoo ),정유미 ( Yoo Mi Jung ),김선영 ( Sun Young1 Kim ),김명자 ( Myung Ja Kim ) 국군간호사관학교 군진간호연구소 2012 군진간호연구 Vol.30 No.2

Purpose: This study was designed to explore the re-employment process of retired nurse officers and to develop a grounded theory about their experiences. Methods: The participants were 9 retired nurse officers holding jobs. Data was collected through interviews using MP3 recordings. The data were analyzed using the Strauss and Corbin(1998) method. Results: The process of ``seeking new dream by breaking down the barrier of reality`` was categorized into four stages: ``destiny: wrapping up the military service``, ``anxiety: looking for a job``, ``adaptation to the new job: giving up, meagerly holding on, satisfaction``, and ``dreaming: planning for the future``. There were four steps of emotional change in this chronological order: ``lack of concern``, ``anxiety: low self-esteem``, ``confidence: stepping up to the challenge``, ``missing the military``. Conclusion: The findings of this study will help better understand the retired nurse officers`` re-employment experience.

발성을 병행한 과제수행이 상지 움직임에 미치는 영향

박지혁(Ji-Hyuk Park),유은영(Eun-Young Yoo) 한국언어치료학회 2005 言語治療硏究 Vol.14 No.3

This study examined the effects of vocalization on upper extremity motion during carrying a cup in healthy people.Experiments were performed on 26 healthy young-adult subjects with right hand dominance. They had no medical history of neurological problems with their upper extremities. The task was to reach for and grasp a cup placed on a table in front of them and then place the cup on a makeshift cabinet shelf with and without vocalization. The vocalization consisted of saying Ah while carrying the cup. We used a 3-D analysis system called CMS-70P to analyze the motion at the peak of the angular velocity, the change in acceleration, and the time to the peak velocity of the elbow while recording the performance time. We found that vocalization increased the peak velocity (p<0.05), shortened the time to the peak velocity (p>0.05), and reduced the change in acceleration((p<0.05) of dominant arm (right side), while it lengthened the time to the peak velocity (p>0.05), and increased the change in acceleration(p>0.05) of non-dominat arm (left side). In summary, vocalization made the motion of the dominant arm positive.

Design of Moving Magnet Type Optical Pickup Actuator with High Frequencies of the Flexible Modes

송명규(Song, Myeong-Gyu),김윤기(Kim, Yoon-Ki),박영필(Park, Young-Pil),유정훈(Yoo, Jeong-Hoon),박노철(Park, No-Cheol) 한국소음진동공학회 2007 한국소음진동공학회 논문집 Vol.17 No.11

Data transfer rate and storage capacity are main criteria of the performance of the optical disk drive. The highest data transfer rate and the largest storage capacity is most desirable. To increase these performances, the actuator of the optical disk drive should have a high servo bandwidth to compensate the vibration of an optical disk. The servo bandwidth is limited by some flexible modes of the actuator, thus it is essential to increase the natural frequencies of the flexible modes. In this paper, we suggested a moving magnet type actuator having high frequencies of the flexible modes. Generally, the moving magnet type actuator has an advantage to increase the natural frequencies of the flexible modes because the moving magnet type actuator has simple structure and the Young's modulus of magnet is high. However, large moving mass and inefficiency of EM(electromagnetic) circuit cut down driving sensitivities of the actuator. To improve driving sensitivities, we designed the model with the closed electromagnetic circuit for tracking direction. In addition, driving sensitivities and the natural frequencies of the flexible modes were improved by using DOE(design of experiments) for electromagnetic circuit and modifying the lens holder.