Long second toe: its nail and skin changes

( Geun-hwi Park ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Tae-wook Kim ),( Sung-min Park ),( Hyun-joo Lee ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-bum 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.2

Background: Nail can be affected by trauma, infection, and systematic disorders. In particular, the toe nails are exposed to the repeated and cumulative minor traumas, which usually result in thickened, splitted, and discolorated nails. Considering these, it can be inferred that the long second toe can be related to various nail and skin changes by repeated minor traumas such as friction in shoes, but the study or report on this topic hasn’t been done yet. Objectives: The purpose of this study was to introduce various nail and skin changes on long second toe. Methods: We analyzed the kinds of nail/skin changes of 50 patients with long second toe, enrolled at Pusan National University Hospitals (Busan and Yangsan) from 2013 to 2018. Results: There was no significant difference in the incidence of left and right toe and toenail, and 7 (14%) patients presented bilateral distribution. The most common nail change on long second toe was melanonychia (23, 46%), followed by subungual hematoma (15, 30%), onycholysis (2, 4%), subungual hyperkeratosis (2, 4%), onychomadesis (1, 2%), and retronychia (1, 2%). The most common skin change was corn (9, 18%), followed by paronychia (2, 4%). Twenty (20/50, 40%) patients also had other toe or toenail changes. Among them, the most common site was big toe/nail (13, 62%), and the most common change was subungual hematoma (8, 42%). Conclusion: Through this study, the dermatologists can recognize and diagnose the nail and skin changes of long second toe.

펠던크라이스 기법, 탄성밴드 운동 및 복합운동 적용이 현대무용전공자의 체간근력에 미치는 영향

김채수(Kim Chae-Soo),권혜영(Kwon Hye-Young),이원재(Lee Won-Jae),조창모(Jo Chang-Mo),김진환(Kim Jin-Hwan),주성범(Ju Sung-Bum),이미경(Lee Mi-Kyoung) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.1

This study is carried out to examine the effect of applying Feldenkrais method, elastic band training and combined training on trunk muscle. The subjects of this study were 32 modern dance majors and they were divided into four groups which consists of 8 peoples each, Feldenkrais method group(modern dance + Feldenkrais method), elastic band training group(modern dance + elastic band training), combined training group(modern dance + Feldenkrais method + elastic band training), and control group(modern dance). Measurement variables which are trunk muscle were measured before training, and after 4 and 8 weeks training and the results are as follow: In the left muscle strength change at Centaur 0°, Feldenkrais method group, elastic band training group and combined training group showed significant increase after 8 weeks training compared to before training. In the right muscle strength change, Feldenkrais method group and combined training group had significant increase after 8 weeks training. In the left muscle strength change at Centaur 45°, Feldenkrais method group and combined training group showed significant increase after 8 weeks training compared to before training and after 4 weeks training. Also elastic band training group showed significant increase after 8 weeks training compared to before training. In the right muscle strength change, Feldenkrais method group and elastic band training group significantly increased after 8 weeks training compared to before training. In the left muscle strength change at Centaur 90°, Feldenkrais method group and combined training group showed significant increase after 4 and 8 weeks training compared to before training. In the right muscle strength change, Feldenkrais method group showed significant increase after 4 and 8 weeks training compared to before training, and elastic band training group significantly increased after 8weeks training compared to before training. In the left muscle strength change at Centaur 135°, there was no significant changes. In the right muscle strength change, elastic band training group and combined training group showed significant increase after 8 weeks training compared to before training. In the left muscle strength change at Centaur 180°, combined training group showed significant increase after 4 and 8 weeks training compared to before training. In the right muscle strength change, combined training group showed significant increase after 4 and 8 weeks training compared to before training. From above results, applying 8 weeks regular program of Feldenkrais method, elastic band training and combined training to modern dance majors showed positive changes on improvement of trunk muscle strength and physical strength. Also this study implemented to verify the effects of trunk muscle strength and body balance through supplementary training program, and showed the effects in the training group and control group after 8 weeks trunk muscle strengthening program. Feldenkrais method, elastic band training and combined training are very effective to improve trunk muscle strength of modern dance majors so that continuous implementation and application of these effective training program shall be provided for strengthening trunk muscle.

A survey of counseling and behavior regarding skin cancer

( Young Bin Shin ),( Chang Il Kwon ),( Jeong Won Jo ),( Yun Sun Moon ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.2

Background: As the incidence of skin cancer increases, more information and education on skin cancer are needed. Although skin cancer is not rare, most patients are little known about general awareness of skin cancer. Objectives: The purpose of this study is to investigate the post-education effects on skin cancer in our hospital outpaitents and carers. Methods: We reviewed a written questionnaire and patients’ self-checked records including patients’ basic medical information and knowledge of skin cancer protective modalities. Results: In total 340 cases, 215 (63.2%) patients were female and 125 (36.8%) patients were male. 6 people in their teens, 56 people in their 20s and 30s, 156 people in their 40s and 50s, 122 people in their 60s or older. Before education, 142 people said sunlight can cause a skin cancer and 178 did not. After education, 246 people said Yes and 94 people did not. When asked how you wanted to get more information on skin cancer, 104 (30.6%) people said that they were printed handout, 142 (41.8%) were visit to dermatologists, 52 (15.3%) were photos of skin symptoms, and 42 (12.3%) were phone calls. Conclusion: This result showed that people are little known about risk factor of skin cancer such as sunlight and artificial tanning. However, we found that through education, people's perceptions could change. The education on behavior for skin cancer prevention should be continued so that the awareness of the risk of skin cancer can be changed.

A Structural Analysis on the Leaflet Motion Induced by the Blood Flow for Design of a Bileaflet Mechanical Heart Valve Prosthesis

Young Joo Kwon,Chang Nyung Kim,Jae Won Lee 대한기계학회 2003 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.17 No.9

This paper presents a structural analysis on the rigid and deformed motion of the leaflet induced by the blood flow required in the design of a bileaflet mechanical heart valve (MHV)<br/> prosthesis. In the study on the design and the mechanical characteristics of a bileaflet mechanical heart valve, the fluid mechanics analysis on the blood flow passing through leaflets, the kinetodynamics analysis on the rigid body motion of the leaflet induced by the pulsatile blood flow, and the structural mechanics analysis on the deformed motion of the leaflet are required sequentially and simultaneously. Fluid forces computed in the previous hemodynamics analysis on the blood tlow are used in the kinetodynamics analysis on the rigid body motion of the leaflet. Thereafter, the structural mechanics analysis on the deformed motion of the leaflet follows to predict the structural strength variation of the leaflet as the leaflet thickness changes. Analysis results show that structural deformations and stresses increase as the fluid pressure increases and the leaflet thickness decreases. Analysis results also show that the leaflet becomes structurally weaker and weaker as the leaflet thickness becomes smaller than 0.6 mm.

Disorders of Liver : Is Endoscopic Variceal Ligation Effective For The Treatment Of Bleeding From Gastroesophageal Varices (GOV)?

( Won Hyeok Choe ),( So Young Kwon ),( Jeong Hwan Kim ),( Byung Kook Kim ),( Chi Hoon Kim ),( Chang Hong Lee ) 대한소화기학회 2007 SIDDS Vol.9 No.-

Background/Aims: The optimal management of bleeding from gastroesophageal varices (GOV) remains controversial. The aim of this study was to investigate whether endoseopic variceal ligation (EVL) is effective and safe for the management of bleeding from GOV. Methods: Forty-one cirrhotic patients receiving EVL due to a history of variceal bleeding from GOV were analyzed. In twenty-two patients of them, serial endoseopic ultrasonography (EUS) were performed. GOV were grade using the system suggested by Sarin et al: type I (GOVI) and type 2 (GOV2). Results: Twenty-eight patients were GOVI and thirteen patients were GOV2. Successful treatment for controlling acute bleeding were achieved in 26/28 (93%) in GOVI and 9/13 (85%) in GOV2. Rebleeding was 15% in GOVI, while 40% in GOV2. Multivariate Cox regression indicated that type of GOV, variceal size and residual variceal size after EVL were independent factors predictive of GOV re-bleeding. Serial EUS findings demonstrated that the size of GOVI became decreased after EVL in 10/15 (67%) patients, while GOV2 did not change. Conclusions: EVL was safe and effective for the emergency treatment of acutely variceal bleedings from GOV. For the preventing variceal rebleeding, EVL was more effective in GOVI than GOV2.

The clinical manifestations of stasis dermatitis and analysis of association with other vascular diseases

( Jeong Won Jo ),( Chang Il Kwon ),( Young Bin Shin ),( Yun Sun Moon ),( Eui Chang Jung ),( Chi Yeon Kim ),( Tae Jin Yoon ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.2

Background: Stasis dermatitis is a common dermatologic disorder. It is caused by venous hypertension results from venous backward flow. However, research on the association with specific vascular disease is insufficient. Objectives: This study was intended to investigate in clinical manifestations of stasis dermatitis and analysis of association with other vascular diseases in our hospital outpatients. Methods: In this study, we investigated 37 patients with a diagnosis of stasis dermatitis in our hospital from 2014 to 2019. We reviewed clinical manifestations and relation with other vascular disease. Results: In total 37 cases, 20 (54.1%) patients were female and 17 (45.9%) patients were male. Twelve two (59.5%) patients were presented as erythema, followed by 14 (37.8%) as purpuric lesions and 11 (29.7%) as brownish changes. There were 4 (10.8%) patients showed crust, 3 (8.1%) as edema, 2 (5.4%) as scale, 2 (5.4%) as ulcer. For symptoms, 15 (40.5%) patients complained itching, 4 (10.8%) as tenderness, 3 (8.1%) as pain, 1 (2.7%). In relation with other vascular disease, 16 (43.2%) patients represented with vein related disease such as deep vein thrombosis, varicose vein and thrombophlebitis. However, there was no arterial disease such as arteriosclerosis obliterans. Conclusion: The result shows clinical manifestations of stasis dermatitis and association with other specific vascular diseases. By understanding these findings, it is expected that better treatment outcome will be obtained.

위용종의 내시경적 생검과 내시경적 절제술 후 병리학적 진단의 불일치

윤원재 ( Won Jae Yoon ),이동호 ( Dong Ho Lee ),이국래 ( Kook Lae Lee ),장동경 ( Dong Kyung Chang ),김병관 ( Byeong Gwan Kim ),김지원 ( Ji Won Kim ),정지봉 ( Ji Bong Jeong ),김나영 ( Na Young Kim ),김진욱 ( Jin Wook Kim ),황진혁 ( 대한내과학회 2005 대한내과학회지 Vol.69 No.5

Background : Gastric polyp is a descriptive term referring to mucosal prominence that protrudes beyond the flat lining of the stomach. Almost 90% of gastric polyps are hyperplastic polyps. Adenomatous polyps may contain focal carcinomatous foci or undergo carcinomatous changes. It is known that there is some degree of discordance between the results of endoscopic forceps biopsy and pathology of resected specimens. The aim of this study was to investigate the discordance in pathologic findings between endoscopic forceps biopsy and endoscopic resection specimen of gastric polyps. Methods : We reviewed endoscopic photographs and medical records of the patients who underwent endoscopic resection from April, 1996 through February, 2003. Results : A total of 85 cases of gastric polyps from 74 patients were reviewed. Male-to-female ratio was 1:1.96. Mean age was 59.9±10.8 years. Multiple polyps were observed in 10.8%. Gastric polyps occurred in the antrum most frequently (58.8%). Pathology results on resected specimens were as follows: tubular adenoma 45.9%, hyperplastic polyp 31.8%, inflammatory polyp 9.4%, hamartoma 3.5%, fundic gland polyp 2.4%, tubulovillous adenoma 2.4%, adenocarcinoma 2.4%, dysplasia 1.1%, and mucosal pseudolipomatosis 1.1%. Discordance rate between endoscopic biopsy and pathology of resected specimens was 27.1%. There was no relationship between the size of the polyp and concordance rate. Conclusions : There was considerable discordance in pathologic findings between endoscopic forceps biopsy and resected specimens. Approaches to review the histology of an entire polyp should be performed, especially when an adenoma is suspected.(Korean J Med 69:481-486, 2005)

A Structural Analysis on the Leaflet Motion Induced by the Blood Flow for Design of a Bileaflet Mechanical Heart Valve Prosthesis

Kwon, Young-Joo,Kim, Chang-Nyung,Lee, Jae-Won The Korean Society of Mechanical Engineers 2003 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.17 No.9

This paper presents a structural analysis on the rigid and deformed motion of the leaflet induced by the blood flow required in the design of a bileaflet mechanical heart valve (MHV) prosthesis. In the study on the design and the mechanical characteristics of a bileaflet mechanical heart valve, the fluid mechanics analysis on the blood flow passing through leaflets, the kinetodynamics analysis on the rigid body motion of the leaflet induced by the pulsatile blood flow, and the structural mechanics analysis on the deformed motion of the leaflet are required sequentially and simultaneously. Fluid forces computed in the previous hemodynamics analysis on the blood flow are used in the kinetodynamics analysis on the rigid body motion of the leaflet. Thereafter, the structural mechanics analysis on the deformed motion of the leaflet follows to predict the structural strength variation of the leaflet as the leaflet thickness changes. Analysis results show that structural deformations and stresses increase as the fluid pressure increases and the leaflet thickness decreases. Analysis results also show that the leaflet becomes structurally weaker and weaker as the leaflet thickness becomes smaller than 0.6 mm.

A study on the dynamic behavior of the Korean next-generation high-speed train

Jeon, Chang-Sung,Kim, Young-Guk,Park, Joon-Hyuk,Kim, Seog-Won,Park, Tae-Won Professional Engineering Publishing Ltd 2016 Proceedings of the Institution of Mechanical Engin Vol. No.

<P>This study describes the dynamic behavior of the HEMU-430X, the Korean next-generation high-speed train. The HEMU-430X was initially analyzed using VAMPIRE, a computer program that is used to examine the dynamics of railway vehicles, based on which it was expected to sway strongly at its tail end. This hunting motion was expected to disappear when the position of the yaw damper was changed. The dynamic behavior of the HEMU-430X was assessed in an on-track test performed using the protocols in the EN14363 standard and measuring the carbody, bogie and axle accelerations; the HEMU-430X was found to satisfy the safety criterion. The hunting motion appeared at speeds of 150, 350 and 387km/h, and countermeasures such as changing the position of the yaw damper, installing carbody dampers, and increasing the damping coefficient of the yaw damper installed on the motor car containing the driver's cab were taken in order to reduce the vibrations. Ultimately, the highest test speed achieved was 421.4km/h. Subsequently, it was found that the critical speed tended to decrease with mileage. This was attributed to excessive lateral damping and a revised design was proposed to solve this problem.</P>

정부조직의 ‘조직융합관리’에 관한 시론적 연구

임영제(Young Je Yim),이창원(Chang-Won Lee) 한국정책과학학회 2008 한국정책과학학회보 Vol.12 No.4

1990년대 이후 주요선진국들은 정부혁신의 한 가지 방편으로 정부부처들을 통합하는 정부조직의 개편을 단행하였고, 우리나라 역대 정부들도 그동안 정권이 바뀔 때 마다 정부조직의 효율성, 생산성 제고 등의 기치 하에 부처 간 통폐합을 시도하였으나 통합의 시너지 효과를 보지 못하고 여러 가지 부작용을 경험해온 것이 현실이다. 이러한 부작용을 최소화하고 의도했던 조직통합의 효과를 얻기 위해서는 조직의 융합관리가 필요하다. 본 연구에서는 그동안 조직의 특정 변수에 치우쳐 연구되어 왔던 조직통합, 조직융합에 대한 연구를 검토함으로써 조직융합의 통합적 접근법을 시론적으로 제시하고자 하였다. 아울러 개념적 혼란이 남아 있는 것으로 생각되는 통합과 융합의 개념적 정립을 시도함으로써 이로 인한 개념상의 혼란과 융합지표 설정의 혼란 등을 해결할 수 있는 단서를 제공하고자 시도하였다. 이를 위하여 우선 조직융합에 관한 선행연구들을 조직문화적 측면, 인적자원관리적 측면, 구조기능적 측면의 세 가지 측면으로 나누어 살펴보았다. 조직융합의 개념정립과 관련해서는 통합과는 차별화되는 융합의 개념을 제시하고 이를 바탕으로 조직융합의 통합적 접근을 모색하였다. 즉 조직문화적 접근, 관리과정적 접근, 구조기능적 접근의 세 가지 접근을 통하여 ‘화학적 결합’으로서의 조직융합의 방향을 제시하였다. This study finds the successful management strategies of PMI (post-merger integration) in public organizations and explores the process of the PMI in public organizations. PMI is the most important phase of organizational change. The PMI period is very similar to any strategic change management process for an organization. It must continually assess the speed of the changes being made, establish clear leadership, communicate effectively, maintain a human resource focus throughout the process, deal with both internal and external resistance, and make rational decisions. It must be dynamic in adapting to the ever-changing circumstances. What is the message that this study leaves for practicing managers and academics? A successful strategy of PMI(post-merger integration) in the public organizations is depends on having strategy or merger logic that goes beyond simple cost saving, rationalization, and the capacity to realize those strategic benefits through the public and cultural integration processes that are the focus of this study.