394,039 research outputs found
Perceived instability of virtual haptic texture. II. Effect of collision-detection algorithm
No full textThis article reports the second study in a series that investigates perceived instability-unrealistic sensations associated with virtual objects-of virtual haptic texture. Our first study quantified the maximum stiffness values under which virtual haptic textures were perceived to be stable (Choi & Tan, 2004). The present study investigated the effect of the collision-detection algorithm by removing the step changes in force magnitude that could have contributed to perceived instability in the first study. Our results demonstrate a significant increase in the maximum stiffness for stable haptic texture rendering. We also report a new type of perceived instability, aliveness, that is characterized by a pulsating sensation. We discuss the possible cause of aliveness and show that it is not always associated with control instability. Our results underscore the important roles played by environment modeling and human haptic perception, as well as control stability, in ensuring a perceptually stable virtual haptic environment.X1118sciescopu
Choi Sung Jun
No full text학위논문(석사)--아주대학교 일반대학원 :의학과,2010. 2TABLE OF CONTENTS
ABSTRACT ⅰ
TABLE OF CONTENTS iii
LIST OF FIGURES iv
LIST OF TABLES v
Ⅰ. INTRODUCTION 1
Ⅱ. PATIENTS AND METHODS 3
A. Study design 3
B. Patients 4
C. Stent and stent insertion 4
D. Statistics 4
Ⅲ. RESULTS 6
Ⅳ. DISCUSSION 13
REFERENCES 18
국문요약 24MasterBackground: The covered self expanding metal stent (SEMS) has become the main treatment option of malignant esophageal obstruction. However, the fully covered SEMS has not been as popular as the partially covered one for the fear of migration in spite of much advantage. So, we performed a prospective study to evaluate clinical efficacy of the fully covered SEMS.
Methods: Between October 1998 and February 2009, 100 consecutive patients with malignant esophageal obstruction who were treated with the fully covered Niti-S stent (Niti-S, Taewoong Medical, Seoul, Korea) were included. Data collected contained technical success rate of deployment and retrieval, dysphagia score changes, success rate of esophagorespiratory fistula (ERF) resolution, survival, stent patency and complications. We also conducted analyses concerning the associations between results and variables.
Result: Technical success rate of stent deployment was 100%. Dysphagia score was improved significantly from a mean of 3.1±0.8 to 1.3±0.7 (p=0.000) and 13 of 14 patients(14/100,14%) with ERF were resolved successfully with the initial stent(13/14, 92.9%). Median survival and stent patency was 74(51~97) and 54(47~67) days respectively. Recurrent dysphagia occurred in 19 patients (19/100,19%) with tumor ingrowth (2/100,2%), tumor overgrowth(7/100,7%), stent migration(6/100,6%), and food impaction(4/100,4%). Among other complications, early(≤7days) complications were chest pain (12/100, 12%), regurgitation (2/100 2%), tracheal compression (1/100, 1%) and late(>7days) ones were bleeding (2/100, 2%), persistent chest pain (2/100, 2%), and GERD (7/100, 7%). Reintervention had to be done in 19 patients (19/100,19%). Among them, endoscopic stent retrieval and replacement was done in 17 patients (17%) with 100% success rate and additional stents were inserted for the remaining two patients. There was no stent related mortality or 30 day mortality. In our analyses, there was no significant variable associated with clinical outcomes and complications.
Conclusions: The fully covered Niti-S metal stent has proved its effectiveness in palliation of malignant dysphagia and safety of endoscopic retrieval with a comparably low migration rate maintaining its good advantage of lower incidence of tumor ingrowth and overgrowth.
Key words; malignant dysphagia, fully covered SEMS, stent migration, stent retrieval
Biodistribution of <sup>177</sup>Lu-CHOI-3.1 in mice bearing OHS xenografts.
No full textBiodistribution of 177Lu-labeled chimeric OI-3 IgG1 isotype antibody (CHOI-3.1) in tissues of interest in OHS xenograft-carrying nude mice. At each time point from three to six animals were used, with number of tumors ranging from five to twelve per group. Straight lines have been drawn to connect the data points. The error bars correspond to the standard error of the mean.</p
From the Margins to the Forefront: Tillie Olsen's Mediation as Figure and Author
No full text45 pg.Tillie Olsen's life experiences and self-identification as a working class woman provide a strong basis for analyzing her fiction as partly autobiographical. As she wrote, she developed her position as a recognized and award winning author into that of a literary mediator for socially marginalized subjects, actively working to represent certain conditions of exclusion due to social, racial, economic, and sexual factors during the 1970's and 1980's. Through analysis of her fiction and non-fiction texts, her use of modernist writing techniques, her purpose as a writer, and her impact on the literary canon, it becomes possible to see how she has altered the literary landscape and has made those who suffer exclusion visible and legible.Advisor(s): Choi, Helen . Committee Member(s): Marshik, Celia.Stony Brook University Libraries. SBU Graduate School in Department of English. Charles Taber (Dean of Graduate School)
(A) STUDY ON CHOI, SEONG HEE&apos;S DANCE
No full textBoth theatrical performance and theoretical study, the realm of present-day Korea Dance show a marked trend toward quantitative and qualitive increment. But the epoch of shinmuyong, a historical upheaval under the Japanese rule has been be negligent to this day. Accordingly, Choi, Seong Hee has neglectedin estimation about her , even she was the pioneer of Shinmuyong and Pre-eminent dancer over our country during that time. That reason is that a natinal humilitation by colonialization was mixed up a special political situation.
The intention of this research, the proper understanding of the current of our dance hisory, especially in the 1930s, through study of Choi, Seong Hee who was the symbol of that date.
First of all, the concept and the peculiarity of Shinmu-yong were refered. The study of the life, work, and view of art of Choi, Seong Hee was also given. Based upon these consideration, I want to go deep into the study of correlation about the Shinmuyong and the Modern Dance of Korea.
The results were as follows. In affirmative points, Choi as a matchless dancer during the epoch of Shinmuyong builds up new dance style, which was a compromise between Western style and Korean hue. On the other hand, in negative points, she made fall into confusion Dance native to Korea in the beginning of development on the stage by her superficial view of traditional aesthetics and partial appropriation of convential dance techniques.
In all sense, Choi, Seong Hee had agre at influence on Shinmuyong. Such as pecial condition of Modern Dance was connected continuously by the Shinmuyong of Korea.
In this study, Korean Dance at turning point, the 1930s, through the objective study of Choi, Seong Hee was discussed this work form the foundation for future of Korean Modern Dance.;1930년대는 한국 근대 무용사에 있어서 현대적 예술 무용으로서의 근대무용이 선보인 시기이자 전통을 근거로 하는 창작춤이 극장무대로 진출하는 중요한 시기이다. 최승희는 바로 그 시기를 대표하는 무용가였으나 지금까지 학문적 논의의 대상에서 제외되어온 것이 통례였다. 따라서 본 논문은 최승희의 구체적인 면모와 신무용기의 특질을 연관ㆍ고찰하여 근대 무용사 이해의 또 다른 방향을 모색하고자 하였다.
이러한 의도하에 그 방법으로는 II장에서 신무용의 본질과 특수성, 그 개념을 재정립하고 III장에서는 최승희의 생애와 공연활동, 작품해석을 근거로 최승희 예술세계의 구체적 면모를 확인하고자 하였으며, 이를 위해 레파토리 분석을 통한 작품 경향상의 특징 규모에 주력하였다. 또한 IV장에서는 전통과 신무용 한국 현대춤을 비교함으로써 최승희 춤에 내재된 역사적 연쇄성에의 집약으로 결론을 맺고 있다.
타고난 재능과 뛰어난 감각성으로 20여년간 총42회, 50여작의 창작을 남긴 최승희는 전통춤의 창작화 과정에서 전통 미학적 철학성의 미비라는 취약점에도 불구하고 한국 근대 무용사에 근대 무용으로서의 창작춤과 한국적 신무용이라는 독특한 쟝르를 개척했음이 연구 결과 나타났으며, 동서양의 상반된 춤을 하나의 독자적 스타일로 구성하고자 했던 최승희의 시도는 그야말로 진보적인 선구성을 띠었고, 동양적 orientalism을 구축하고자 했던 최승희춤의 영향은 신무용과 한국 현대춤의 연쇄성이라는 면에서 볼 때 작용과 반작용이라는 상호모순적 양면성으로 연결되어졌음을 알 수 있었다.목차 = ⅰ
논문개요 = ⅱ
Ⅰ. 서론 = 1
1. 연구의 목적 = 1
2. 연구의 방법 = 2
Ⅲ. 역사적 인식측면에서 본 신무용 - 신무용의 본질(本質)과 특수성 - = 3
Ⅲ. 최승희의 예술 세계 = 7
1. 생애 = 7
2. 작품 경향 = 13
3. 최승희의 예술관 = 36
Ⅳ. 전통과 신무용 그리고 한국 현대춤의 비교 = 40
1. 전통 인식 = 40
2. 한국 현대춤의 상황 = 43
3. 최승희춤과 한국 현대춤 = 46
Ⅴ. 결론 = 49
참고문헌 = 52
ABSTRACT = 56
부록 = 5
Neurotoma silla Shinohara, Choi & Lee, 2018
No full textPlate(s) of specimen(s) in high resolution.
Print version:
Shinohara, A.; Kramp, K.; Taeger, A. 2022: The Pamphiliinae of the Russian Far East and Korea (Hymenoptera, Pamphiliidae). - Zootaxa, Auckland 5167(1): 1-251.Neurotoma silla Shinohara, Choi & Lee, 2018Holotype & paratypePhotos by Jin-Kyung Choi, enhanced by A. Taeger</div
Generalized Choi–Davis–Jensen’s Operator Inequalities and Their Applications
Get PDFThe original Choi–Davis–Jensen’s inequality, known for its extensive applications in various scientific and engineering fields, has inspired researchers to pursue its generalizations. In this study, we extend the Choi–Davis–Jensen’s inequality by introducing a nonlinear map instead of a normalized linear map and generalize the concept of operator convex functions to include any continuous function defined within a compact region. Notably, operators can be matrices with structural symmetry, enhancing the scope and applicability of our results. The Stone–Weierstrass theorem and the Kantorovich function play crucial roles in the formulation and proof of these generalized Choi–Davis–Jensen’s inequalities. Furthermore, we demonstrate an application of this generalized inequality in the context of statistical physics
- …
