• Title/Summary/Keyword: Digital hand

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Correction of Syndactyly using Pentagonal Flap with Minimal Skin Graft (오각형피판과 최소한의 피부이식을 이용한 합지증의 교정)

  • Bae, Byoung Man;Eo, Su Rak;Kim, In Kyu;Koh, Sung Hoon;Jones, Neil F.
    • Archives of Plastic Surgery
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    • v.34 no.1
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    • pp.64-69
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    • 2007
  • Purpose: The key of treatment in syndactyly is to separate the fused digits safely, and to create a normal web space with enough cutaneous coverage. Despite many techniques have described the correction of syndactyly, skin graft still remains the annoying one. We designed the pentagonal flap from hand dorsum to reconstruct the web space reliably and try to minimize the need for skin graft. Methods: Between July 2003 and August 2005, six cases of syndactyly were corrected at UCLA Medical Center and Hallym University Sacred Heart Hospital using dorsal pentagonal flap for web space reconstruction and straight incisions for the sides of digits to minimize the need for skin graft. The proximal edge of the pentagonal flap was designed in V shape to allow for easy closure of the donor site after advancement. The pentagonal flap was advanced volarly with the underlying dermofat tissues to form a digital web. In some cases, skin defects were unavoidable and covered with full thickness skin graft from the inguinal area. Results: Syndactyly were seen in 4 cases of Apert syndrome, 1 postburn scar webbing with PIP joint contracture and 1 recurrence after the incomplete reconstruction. In all Apert syndrome, straight line incision was used along the sides of the fingers and skin graft was needed. But, in 2 cases of incomplete type, we could save the need for skin graft only for the correction of syndactyly. We could get a good looking web space without any complications such as flap or graft loss. Conclusion: As a modification of Sherif's V-Y dorsal metacarpal flap, we believe pentagonal flap could be one of the easiest and safest way to reconstruct the web space of syndactyly in functional and cosmetic standpoint.

『Yeongchu·Ohseak(靈樞·五色)』 and Physiognomy - Focused on Inspecting Colors - (『영추(靈樞)·오색(五色)』에 대한 상학적(相學的) 고찰(考察) - 오색편(五色篇)과 인상고전(人相古典)에 나오는 찰색(察色) 중심으로 -)

  • Joo, Sun-Hee
    • The Journal of Korean Medical History
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    • v.26 no.1
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    • pp.55-71
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    • 2013
  • Objectives : In physiognomy, human emotion such as joy, anger, sorrow, and pleasure in social relation is one of important factors for impression formation. Various emotional feelings exert significant influence on the endocrine action and the muscle activities as well as changes of one's impression, which results in changes of one's life. On the other hand, such alterations in life may also bring changes of one's impression. The method of physiognomic examination is not different from the inspecting colors that makes a diagnosis of physical conditions. Thus, based on "Yeongchu Ohseak(靈樞 五色)", the present study compares similarities and differences between the two views of the physiognomy and the Korean medicine. Methods : The similarities and differences between the two approaches will be compared to each other and analysed with the respect to inspecting colors suggested by preceding research in physiognomy and "Yeongchu Ohseak(靈樞 五色)". Results & Conclusions : From this study, we found physiognomy and the Korean medicine shares the same theoretical background. The differences that we found in the present study are as follow. The inspection diagnosis in the Korean medicine focuses on the prevention and treatment of diseases; however, physiognomy focuses on the prognostication of one's life in order to lead a happy life. As the ultimate goals of the two approaches differ with each other, it is peculiarly challenging to compare these two in detail. Therefore, the future study should address physiognomy as a part of the Korean medicine so that the Korean medicine can contribute to mankind for a better and healthy human life.

An Identification of the Image Retrieval Domain from the Perspective of Library and Information Science with Author Co-citation and Author Bibliographic Coupling Analyses

  • Yoon, JungWon;Chung, EunKyung;Byun, Jihye
    • Journal of the Korean Society for Library and Information Science
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    • v.49 no.4
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    • pp.99-124
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    • 2015
  • As the improvement of digital technologies increases the use of images from various fields, the domain of image retrieval has evolved and become a growing topic of research in the Library and Information Science field. The purpose of this study is to identify the knowledge structure of the image retrieval domain by using the author co-citation analysis and author bibliographic coupling as analytical tools in order to understand the domain's past and present. The data set for this study is 245 articles with 8,031 cited articles in the field of image retrieval from 1998 to 2013, from the Web of Science citation database. According to the results of author co-citation analysis for the past of the image retrieval domain, our findings demonstrate that the intellectual structure of image retrieval in the LIS field consists of predominantly user-oriented approaches, but also includes some areas influenced by the CBIR area. More specifically, the user-oriented approach contains six specific areas which include image needs, information seeking, image needs and search behavior, image indexing and access, indexing of image collection, and web image search. On the other hand, for CBIR approaches, it contains feature-based image indexing, shape-based indexing, and IR & CBIR. The recent trends of image retrieval based on the results from author bibliographic coupling analysis show that the domain is expanding to emerging areas of medical images, multimedia, ontology- and tag-based indexing which thus reflects a new paradigm of information environment.

Image Enhancement using Statistical Information of Pixel Dynamics (영상화소의 활동도를 이용한 화질 개선)

  • Lee, Im-Geun;Lee, Soo-Jong;Han, Soo-Whan
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.12 no.12
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    • pp.2337-2342
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    • 2008
  • In this paper, we propose the novel approach to enhance the visual quality of the digital image with adaptively sharpening and removing the noise. Image enhancement is performed in two ways. The pixels in the high dynamics area are sharpened by the adaptive unsharp mask with the parameter, which is derived using the statistical information of the image. On the other hand, the proposed algorithm do not perform the sharpening process in the uniform area that may cause the undesired artifact due to noise amplification, rather it performs smoothing to suppress the noise in this area. The decision, which process will be applied at the pixel, is also controlled by the statistics of the pixel dynamics. The proposed algorithm enhances the visual quality almost automatically by sharpening and smoothing at the same time with less parameter selection.

Numerical Analysis of Rainfall Induced Landslide Dam Formation

  • Do, Xuan Khanh;Regmi, Ram Krishna;Jung, Kwansue
    • Proceedings of the Korea Water Resources Association Conference
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    • 2015.05a
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    • pp.245-245
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    • 2015
  • In the recent years, due to long-lasting heavy rainfall events, a large number of landslides have been observed in the mountainous area of the world. Such landslides can also form a dam as it blocks the course of a river, which may burst and cause a catastrophic flood. Numerical analysis of landslide dam formation is rarely available, while laboratory experimental studies often use assumed shape to analyze the landslide dam failure and flood hydraulics in downstream. In this study, both experimental and numerical studies have been carried out to investigate the formation of landslide dam. Two case laboratory experiments were conducted in two flumes simultaneously. The first flume (2.0 m 0.6 m 0.5 m) was set at $22^{\circ}$ and $27^{\circ}$ slope to generate the landslide using rainfall intensity of 70.0 mm/hr. On the other hand, the second flume (1.5 m 0.25 m 0.3 m) was set perpendicularly at the downstream end of the first flume to receive the landslide mass forming landslide dam. The formation of landslide dam was observed at $15^{\circ}$ slope of the second flume. The whole processes including the landslide initiation and movement of the landslide mass into the second channel was captured by three digital cameras. In numerical analysis, a two-dimensional (2D) seepage flow model, a 2D slope stability model (Spencer method) and a 2D landslide dam-geometry evaluation model were coupled as a single unit. This developed model can determine the landslide occurrence time, the failure mass and the geometry of landslide dam deposited in the second channel. The data obtained from numerical simulation results has good agreement with the experimental measurements.

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Legal Issues To Be Considered Before Implementing Telehealth in South Korea (원격진료 실시에 수반되는 법적 쟁점들에 대한 고찰)

  • Lee, Won Bok
    • The Korean Society of Law and Medicine
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    • v.22 no.1
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    • pp.57-90
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    • 2021
  • Telehealth has been a hotly debated health policy issue in South Korea, mostly because the medical community - especially primary care practitioners - have strongly opposed it. As a result, telehealth has remained forbidden under law. However, the temporary permission of telehealth in Korea, as well as its exploding use in other countries, all in response to COVID-19, is re-igniting the discussion on telehealth in Korea. This article explores general legal issues that may arise if and when telehealth is fully implemented in Korea. The article's analysis shows that legislative changes are necessary to allow reimbursement of telehealth as well as remote purchase of medicine. The article also advocates introducing new evidentiary rules to curtail covert recording of telehealth sessions. On the other hand, additional legislation is probably not necessary to address the medical liability of physicians practicing telehealth or to adress much-discussed privacy issues. The existing laws in those domains are already robust enough to operate without much difficulty in the context of telehealth too.

The safety of one-per-mil tumescent infiltration into tissue that has survived ischemia

  • Prasetyono, Theddeus Octavianus Hari;Nindita, Eliza
    • Archives of Plastic Surgery
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    • v.46 no.2
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    • pp.108-113
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    • 2019
  • Background The aim of this study was to assess the safety of one-per-mil tumescent injections into viable skin flaps that had survived an ischemic insult, in order to assess the potential suitability of one-per-mil tumescent injections in future secondary reconstructive procedures such as flap revision and refinements after replantation. Methods Forty groin flaps harvested from 20 healthy Wistar rats weighing 220 to 270 g were subjected to acute ischemia by clamping the pedicle for 15 minutes. All flaps showing total survival on the 7th postoperative day were randomly divided into group A (one-per-mil tumescent infiltration; n=14), group B (normal saline infiltration; n=13), and group C (control, with no infiltration; n=13) before being re-elevated. Transcutaneous oxygen tension ($TcPO_2$) was measured before and after infiltration, and changes in $TcPO_2$ were statistically analyzed using analysis of variance, the paired t-test, and the independent t-test. The viability of flaps was also assessed using the Analyzing Digital Images software at 7 days after the second elevation. Results Thirty-nine flaps survived to the final assessment, with the sole exception of a flap from group A that did not survive the first elevation. $TcPO_2$ readings showed significant decreases (P<0.05) following both one-per-mil tumescent ($99.9{\pm}5.7mmHg$ vs. $37.2{\pm}6.3mmHg$) and normal saline ($103{\pm}8.5mmHg$ vs. $48.7{\pm}5.9mmHg$) infiltration. Moreover, all groin flaps survived with no signs of tissue necrosis. Conclusions One-per-mil tumescent infiltration into groin flap tissue that had survived ischemia did not result in tissue necrosis, although the flaps experienced a significant decrease of cutaneous oxygenation.

Social media impact in the Match: A survey of current trends in the United States

  • Steele, Thomas N.;Galarza-Paez, Laura;Aguilo-Seara, Gabriela;David, Lisa R.
    • Archives of Plastic Surgery
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    • v.48 no.1
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    • pp.107-113
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    • 2021
  • Background Applicants to integrated plastic and reconstructive surgery (PRS) residency in the United States spend exorbitant amounts of time and money throughout the interview process. Outside of first-hand experience through a visiting rotation, applicants utilize various resources in learning about a program. Today's applicants are "Millennials," the demographic cohort raised during the information age and proficient with digital technology. The authors evaluated whether programs have a presence on social media, and whether applicants are following these accounts. Methods An online survey was sent to applicants to a single integrated plastic surgery program evaluating basic demographics, social media utilization, and sources of information accessed throughout the residency application process. A manual search of popular social media platforms (Instagram, Facebook, and Twitter) was performed in October 2019. Accounts affiliated with integrated PRS programs were identified and analyzed. Results Eighty-four of 222 applicants (37.8%) completed the survey. Ninety-six percent of applicants were within the Millennial demographic. Ninety-six percent of applicants had some form of social media presence, with Facebook (90%) and Instagram (87%) being the most popular platforms. Seventy-three percent of applicants reported following a PRS residency social media account. As of October 2019, 59 integrated residency programs (73%) have active Instagram accounts. Conclusions Applicants still rely on the program website when researching potential residencies, but social media is being rapidly adopted by programs. Program social media accounts should be used as a dynamic form of communication to better inform applicants of program strengths and weaknesses.

Usability Evaluation of Mobile Banking Applications in Digital Business as Emerging Economy

  • Hamid, Khalid;Iqbal, Muhammad Waseem;Muhammad, Hafiz Abdul Basit;Fuzail, Zubair;Ghafoor, Zahid Tabassum;Ahmad, Sana
    • International Journal of Computer Science & Network Security
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    • v.22 no.2
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    • pp.250-260
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    • 2022
  • Mobile Banking Applications (MBAPs) is one of the recent fads in mobile trading applications (Apps). MBAPs permit users to execute exchanges of money and many more whenever it might suit them; however, the primary issue for mobile banking Apps is usability. Hardly any investigation analyzes usability issues dependent on user's age, gender, exchanging accomplices, or experience. The purpose of this study is to determine the degree of usability issues, and experience of mobile banking users. The survey employs a quantitative method and performs user experiment on 240 participants with six different tasks on the application's interface. The post experiment survey is done with concerning participants. On the other hand, banking experts and Information Technology (IT) expert's group is also involved after the experiment. Expert's opinions about existing mobile banking Apps and suggestions for improving usability of MBAPs are collected through physical means (like questionnaire and interview) and online means like Google form. After that comparison of the opinions of users and experts about MBAPs is performed. The experimentation measures the tasks usability of various mobile banking apps with respect to its effectiveness, efficiency, trustfulness, learnability, memorability and satisfaction. The usability testing was led at different Universities and the outcomes acquired show that there are privacy and trust issues with their mobile banking apps. There is also a gap between users and experts which should be minimized by applying customized usability models, modes concept like other application software and also by adding complete features of banking in MBAPs. It will benefit mobile banking apps users, developers and usability engineers by providing user-friendly which are up to the mark of user's requirements.

The effect of temperature and breeding density of piggery on the collection of oral fluid in Korea (국내 양돈장의 사육 온도와 밀사율이 구강액 채취율에 미치는 영향)

  • Byeon, Hyeon Seop;Kim, Mihwa;Kwon, Sungae;Han, Mina;Han, Sung Tae;Jang, Rae Hoon;Chung, Yun-Soo;Kim, Seokhyun;Jeon, Bo-Young
    • Korean Journal of Veterinary Service
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    • v.44 no.4
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    • pp.217-225
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    • 2021
  • We investigated the effect of temperature and stock density on the collection efficiency of oral fluid in the pig farm in Korea. Three pig farms with similar breeding environmental conditions were selected and four pens of each farm (total 12 pens) were tested for the collection efficiency of oral fluid from pigs. Collection rate was considered as significant when oral fluid was collected from 70% of pigs within a pen. In the case of growing pigs, when internal temperature of pig barn increased by one designated degree (5℃), the oral fluid collection rate significantly decreased by 24.7% (P<0.05). The collection rate of oral fluid also decreased by 7.1% (P<0.05) as the density rate increase by one designated degree (12.5%). It was estimated that the collection efficiency of oral fluid decreased when the internal temperature of pig barn was 30℃ or higher, or barn density is higher 25% or high. On the other hand, in the case of stall-housing sows, unlike growing pigs, there was no significant differences according to the temperature, so oral fluid collection was considered to be efficient even in hot season.